Hyoudou Issei

**Hyoudou Issei** is the a third-year high school student at Kuoh Academy in Class 3-B and a member of the school's "Perverted Trio", a trio of the most perverted men in the entire student body.

He's a member of the Occult Research Club, and his rank in Rias' peerage is Pawn. His power as a Devil ranks at the bottom at the beginning (which increases as the series progresses, until eventually he becomes the strongest among the young Devils and develops his strength into SS-Class); however, on his left arm, he wields the Sacred Gear, Boosted Gear, making him a dangerous opponent to underestimate.

Due to his possession of the Longinus; the **Boosted Gear**, which hosts the *Welsh Dragon*; **Ddraig**, Issei is the direct rival of Vali Lucifer, who is the host of the Vanishing Dragon; Albion, who is Ddraig's archrival.

He has achieved his goal of becoming a High-Class Devil, obtaining his own servants, and is one step closer to owning a harem, becoming a "Harem King".

As it is later revealed in the Chapter, *The Calm Before The Storm*, Issei is the Lamb of Judah, the First of the Seven Seals recorded in the Book of Revelations. He is also the latest reincarnation of Eurynome, the First Queen of the Gods of Council of Godheads.

## Appearance

Issei is a handsome young man of average height with short spiky brown hair, with two short locks of hair behind his head, and light brown eyes. Following his training with Tannin in Dragon Mountain, he gained a more muscular and toned build.

While he has worn various outfits throughout the series, his most commonly worn outfit is the Kuoh Academy boys' school uniform, which consists of a blazer (more commonly black, although in other media is shown with a tinge of purple or grey, with white accents) over a white, long-sleeved dress shirt with black highlights with a black ribbon on the collar, matching black pants, and brown dress shoes.

However, Issei's uniform differs in the fact that he wears a red T-shirt underneath his open dress shirt and blazer, and wears blue and white sneakers in place of dress shoes. Issei's left arm was transformed into that of a Dragon.

In order for it to appear human, a ritual would be performed where Rias Gremory or Rossweisse would suck the power of the Dragon out of it, allowing it to appear human for a few days. After gaining a new body in Dimensional Gap through the combined efforts of Great Red and Ophis, he is now able to freely transform any part of his body into that of a Dragon.

He has been said to show manly expressions by his paternal grandmother. Issei's height is 170 cm (5 feet 7 inches) and body weight is 62→65 kg (137→140 lbs.).

After being contract by Nyx, Issei develops green eyes and strange green markings the encompass his entire left arm, and a green mark resembling a scar on his right cheek. He has also developed a well-toned physique, sporting defined abs and muscles.

After the Cataclysm, an event where Kuoh was reduced to mere rubble and labelled a danger zone, Issei wears a carbon green jacket over a dark red shirt, and a pair of worn out denim jeans with combat boots. He also keeps a katana strapped to his back.

Due to acquiring Miasma while he was a baby through unknown means, Issei's eyes upon the activation of his Special Children powers change color. The sclera of his eyes become black and his irises turn into a toxic green color.

## Personality

Issei is initially shown to be ignorant, self-centered, arrogant, and his ongoing perverted nature, often to make lecherous fantasies, and utterly obsessed with women's breasts and having his own harem. This has caused him to be instantly labeled as a pervert among the girls of Kuoh Academy and has gained him notoriety for being one of the members of Kuoh Academy's Perverted Trio.

Despite his pervertedness, Issei is courageous, selfless and unwaveringly determined to protect those who are important to him, despite almost dying by the hands of his opponents. Having great kindness, Issei is also very caring, "putting his nose into other people's business" as he helped Kiba Yuuto, Toujou Kuroka, and Himejima Akeno overcome their fears and hatred of their mournful past.

Due to this, he gained strong friendship from his comrades and affection from most girls of the Occult Research Club and a strong sense of friendship with higher-up Devils like Rias' family; they have told him to use the same titles for them as Rias (Father, Mother, Brother, etc.), yet he still remains the same.

He has a habit as mentioned by his mother of not forgiving himself if he does something wrong: always saying sorry if said thing is mentioned, and showing an expression of pain and regret. He is also fiercely loyal to his comrades and is always willing to stand up for them. Issei's kindness also have a positive influence on others including former enemies.

When Issei suggested to Cao Cao to use his True Longinus to help and protect people, Cao Cao acknowledged had he and Siegfried met and befriend Issei earlier, they would not have ended up becoming terrorists in the Khaos Brigade. Another sign of his kind nature is that despite wanting to lose his virginity, Issei refuses to take advantage of women when they are upset, even if they themselves are willing to.

This happened when Akeno appeared in front of him naked and wanted to have sex to forget about her sad past and her father. However, Issei refused, knowing it will just hurt her more, and put her clothes back on and hugged her to comfort her.

After his murder by Raynare, Issei had developed a fear of admitting his feelings to the girls, as he thought it would cause them to turn their backs on him. This would also cause him to become oblivious to the feelings of the girls around him (save for Rias after his confession), often believing they are simply teasing him. He acknowledged that this would never happen, but it was still an intense fear.

It is also why he was so insistent on trying to lose his virginity, as he believed that no woman would ever want to be in a true relationship with him and that him having sex was the best he could hope to achieve as a sense of relief. Despite that, even when the girls of the Occult Research Club such as Akeno or Xenovia propositioned him into making love to them, Issei would always initially hold himself back, as he would sometimes look at them with a frightened gaze, a fact which Akeno, Asia and Koneko later noticed.

He fears were finally brought to attention when Akeno, Asia and Koneko confronted him alone and helped him by getting him to admit his feelings and assuring him that they would always love him and so would Rias. This inspired him to finally confesses his love for her which she reciprocated, effectively helping Issei move past his fears. Even with the knowledge that the girls do have romantic affection for him, he still has problems acknowledging some of their ongoing rivalries, an example being who gets to sit on his lap.

Issei is brave, Intelligent, confident, and willing to help others. He is very proud of his ambition of wanting to become a harem king, a promise he made with his mother when he was five. He doesn't hesitate to act when the time calls for it, and can sometimes be impulsive in combat, but has also displayed the capability to step back and think about the situation before acting Showing that generally he is level headed and intelligent, though according to Sirzechs Lucifer his ignition ability can make him overconfident.

While not exactly perverted, Issei has shown not to be too embarrassed when he ends up in perverted situations with women, such as many situations with Rossweisse's lucky lecher lure that he eventually comes to find irritating and once when he leered at Grayfia Lucifuge, when he accidentally looked up her dress surprising her and hoping to see a nude picture of her in the all male devil calendar. He does find the women around him attractive though he does his best to respect them and has yet to realize that Nyx and Hachiman have feelings for him.

In reality, Issei has an innocent side; he is a boy who yearns for love and a true relationship, a side which he only shows to women who can see past his perverted exterior and love him for who he is and who he, in turn, has affections for. He shows this side to the girls of the Occult Research Club, for instance on his date with Akeno or when Rias takes him out on dates.

Initially, after reincarnating as a devil, he set about his desire for a harem as his initial goal, by having his peerage become his harem. After the Rating Game against Sona and Saji, he slightly changed the goal to having a harem peerage that wouldn't lose to anyone. Among his other goals include competing in Rating Games and making Rias the Champion of the Rating Games by becoming the *"Ultimate Pawn"* alongside Kiba, who promised to become the *"Ultimate Knight"* with him and his desire to become the Champion of the Rating Games himself after he obtains his own peerage.

He is also deeply invested in his rivalry with Vali Lucifer, his Heavenly Dragon counterpart, as Issei promised to get stronger and defeat him, with the both of them reaffirming their promise to fight each other some day multiple times during the series and Vali suggesting that Issei create his own team like Vali which is different from his peerage.

Their rivalry would heat up after the both of them enter the Azazel Cup, with Issei creating his own team, *"Team Red Dragon Emperor of the Blazing Truth"*, to try to win the Cup and defeat Vali during the tournament. After the two of them passed the preliminary rounds, the two expressed their desire to continue their initial fight as the both of them promised not to lose until they meet each other in the Cup.

As revealed by Shiva, Issei has a deep desire for peace which is further strengthened by him being the "child" of Great Red and Ophis, as Issei seems incapable of realizing his dream of becoming a Harem King until he obtains peace with his own hands. Due to experiencing intense fights in which he nearly died, Issei affirms his desire to create a world without war and protect his companions even if his enemy is a God.

While initially shown to be unable to understand the appeal of fighting, Shiva reveals that Issei has developed fondness of fighting strong opponents with strong beliefs, with Issei himself confirming that he has come to like defeating strong opponents as equally as groping female breasts. While Issei is shown to like battling strong opponents, at first he was unable to truly "enjoy" a fight (except his match with Sairaorg) due them mostly being life-threatening fights. This began to change after his match with Dulio Gesualdo, as he realized that competing in the Azazel Cup is mostly sport rather then a serious fight.

Issei is shown to admire strong individuals who have strong beliefs and convictions, seeing them as targets for him to catch up to. He is shown to admire Sairaorg Bael, after witnessing his strength and noble splendor and that respect intensified after learning that Sairaorg was talentless like him, as he noted their similar fighting styles. Due to his interest in Rating Games, he has developed a admiration towards Diehauser Belial and Rudiger Rosenkreutz, due to them being the Top 10 Rating Game players, with Issei especially admiring Rudiger Rosenkreutz due to him being a reincarnated devil like him.

As Dragon, he is shown to admire Tannin, admiring his strength and his desire to help other Dragon as Issei considers him the true Dragon King due to his splendor, and Crom Cruach, due to his overwhelming power and his pride as dragon. While he was initially exasperated and annoyed by Fafnir and his panties fetish, Issei is shown to have developed a respect for him after he witnessed Fafnir's willpower and determination to protect Asia from Rizevim.

Issei is noted be be a very friendly person, able to become friends with anyone. Azazel stated that he has the ability to win over the trust of others easily and doesn't discriminate against anyone as others can feel at ease with him due to him not resenting anyone, with Azazel calling that ability a talent of Issei's. Issei's ability to attract companions, allies and enemies is further enhanced by him being the Red Dragon Emperor.

According to Cao Cao, despite Issei's lack of natural talent and demonic power, Issei's ability to attract others by holding dragon powers is top notch compared to previous Red Dragon Emperors, as Cao Cao believes that Issei will become the most dangerous Red Dragon Emperor. His ability to obtain the trust of other is so great that the residual memories of the past Red Dragon Emperors sacrificed themselves to protect him from Samael's curse.

After coming back from the dead with by using Great Red and Ophis' power, Cao Cao commented that Issei's power to attract the strong is scary due to it attracting powerful beings like the Dragon Gods to aid him. According to Azazel, Issei makes a lot of irregular phenomena occur, for instance; a lot of Sacred Gear possessors near Issei were able to awaken irregular Balance Breakers (such as Yuuto, Gasper and Saji). Ophis stated that Issei is as strong as the number of companions he has. According to Azazel, Issei has the natural ability to make supernatural girls fall in love with him, while Millarca Vordenburg stated that most of the men who meet Issei become fascinated with him.

While initially being confused by his popularity among the devil children due to Oppai Dragon, Issei eventually embraced the role of being the Oppai Dragon and began acting as a hero for the children as was demonstrated in Underworld, where he carried the wishes of child fans during his match with Sairaorg Bael, promising to defeat him for the sake of Rias and the children who believed in him.

Issei has placed the his desire to protect the children of the Underworld and of the other factions as one of his goals as seen when he defeated various foes who threatened the children and their dreams such as Shalba Beelzebub, Grendel, and Erebus. In fact, due to Shalba's insanity and him promising to kill the children of the Underworld for rejecting him as a Satan, Issei killed him to stop his malice from reaching the children.

In battle, Issei is sometimes very stubborn, and due to his emotions, he often charges ahead towards his enemies without a second thought whenever his comrades are insulted, treated badly, or easily defeated. Azazel has stated that it is one of Issei's bad habits. Lately, he has started to become more tactical in his battles, using technique-type strategies to defeat opponents, as shown when he used the abilities of the Wyverns in a unique way to defeat Euclid Lucifuge.

Issei also displays strong moral principles, as seen when he initially refused to actually kill his enemies. Even after killing Shalba Beelzebub, Issei still rarely ever kills his enemies and prefers to either let others do so or simply let them face arrest. While Issei can carry grudges, he is not above forgiving his enemies and becoming friends with them due to his kindness, as seen with Vali Lucifer, Toujou Kuroka, Cao Cao, Nyx and Akashi Kyoya.

๊Issei has difficulty remembering people's faces and names. However, Issei can remember the names of noticeable individuals even when they did not directly tell him their names. Issei becomes extremely like and favorite around nude or immodestly dressed women, a fact both Rias Gremory and Himejima Akeno have teased him for. Issei is often disrespectful when talking to those older than himself, calling Sun Wukong, Odin and Zeus "gramps" and referring to several of the other gods by their given names without using honorifics.

## History

Before Issei's birth, his mother became pregnant twice, but the pregnancies ended in miscarriages. So when Issei's mother got pregnant for the third time, his father had paced back and forth in front of a Shinto shrine honestly wishing that this time they would succeed. He was born with a twin sister named Mitsuki. Over the years, Issei slowly retreated into his twin's shadow as she was the more successful and talented sibling.

He is a childhood friend of Shidou Irina and they would always play together back when she still lived in the neighborhood, although he thought she was a boy at the time as he vaguely remembers her. A few times Issei was invited to go to church with her family. On occasions they would stay over at each other's houses, one of these visits when Issei slept over at Irina's, she kissed him while he was sleeping. Eventually, Irina moved to England due to her father's job.

Sometime during his childhood, Issei met an old man who told him and other children stories about breasts, which eventually led to Issei's fascination with them and his perverted tendencies.

He attended the same middle school with Matsuda Yasuaki and Motohama Takeru and the three of them started attending Kuoh Academy one year before the story, and have come to be known as the Perverted Trio to just about the entire school.

## Powers and Abilities

### Natural Abilities

**Immense Demonic Power:** Issei has all the powers common to Devils, including the power to cast spells, but his demonic powers were at first lower than a child's, leaving him unable to travel using magic circles. However, this changed after training with Tannin granting him sufficient demonic power to do so. His demonic powers can be enhanced through promoting to either Bishop or Queen. In Chapter XXX, Issei can summon Ryuuteimaru. In Chapter XXX, he can use magic communication circles; and in Chapter XXX, he can create a teleportation magic circle.

* **Promotion** (プロモーション, *Promōshon*): Being a Pawn, Issei can use the promotion to temporarily gain the traits of a Queen, Rook, Knight or Bishop. In Chapter XXX, after Ajuka Beelzebub rewrote Issei's Evil Pieces, Issei can now use Promotion anytime and anywhere without the King's permission.
* **Dragon Shot** (, *Doragon Shotto*): One of Issei's signature moves. Issei fires a beam of energy by concentrating his demonic power. This move is usually used in tandem with the Boosted Gear to increase its destructive powers. He has also developed a small scale Dragon Shot that is meant for knocking out humans while fending off the members of the Hero Faction who are humans. In his Balance Breaker state, he can fire his Dragon Shot without increasing its destructive power. After his fight with Sirzechs, being inspired by the way he uses his Power of Destruction, Issei starts working on how to redirect his Dragon Shot by moving them in different directions, first using it in Chapter XXX against Cao Cao and again in Chapter XXX during his battle against Jabberwocky.
* **Dress Break** (, *Doresu Bureiku*): The second of Issei's signature moves which he uses mainly against females. This move allows Issei to "strip" women by first coming in contact with them, concentrating his demonic power, then snapping his fingers to activate one of two effects.
	+ **Ver. B (Body):** This move is used to "strip" women by destroying their clothes and/or armor.
	+ **Ver. A (Astral):** This move is used to "strip" women by destroying the effects of spells or abilities that have been used against them.

* **Pailingual** (, *Pairingaru*): Issei's third signature move. Pailingual gives him the ability to talk to the breasts of all females. It is a helpful technique as it helps Issei learn his opponents' plans and strategies by asking their breasts; however, due to complaints from female members from other peerages, Rias banned Issei from using this technique in Rating Games. This move, however, has a weakness which was shown in the Rating Game between Sairaorg when his Bishop Coriana Andrealphus started to strip in front of Issei, and instead of telling him battle plans her breast told him what she was going to strip next thus hindering Pailingual. In Chapter XXX, Issei can combine Penetrate with Pailingual to talk to the breasts of powerful beings and in his Diabolos Dragon form, Pailingual pink space covered the whole island.
	+ **Pai-Phone** (, *Paifon*): A variant of Pailingual, using women's breasts Issei is able to communicate through breasts to other women's breasts.

* **Flame Blaze** (, *Fureimu Bureizu*): Following his training with Tannin, Issei learned how to use Dragon Flames through using Boosted Gear. He first inhales air filling his lungs, then produces a small flame in his stomach with his demonic power; then Boost and Transfer to enhance the flames within his stomach and he breathes out dragon flames from out his mouth toward his opponent. Because of the training, Issei has also developed a high degree of resistance to fire attacks, so that only the most powerful flames, such as those of a Dragon or the Phenex Clan, can injure him. He's also shown to widen the range of his dragon flames that can engulf the whole sky as shown in his battle against Cao Cao in Chapter XXX.
* **Castling** (キャスリング, *Kyasuringu*): Upon becoming King of his own peerage, Issei gained the ability to use this move, which allows him to swap locations with one of his Rooks. He first used it in his training with Baraqiel to escape a sealing barrier by switching with Rossweisse.
* **Nyuutron Beam Cannon** (, *Niyuutoron Bīmu Kyanon*): Issei's fourth signature move, which is the end result of assistance from his grandfather and Guanyin, letting him attach his Scale Mail's tail onto a woman's breast to convert their "Breast Power" into demonic power with their bust size displayed on his gauntlet's jewel and determines how powerful the blast will be. By using Rossweisse's breasts, which are 96, he could launch an enormous pink blast comparable to Infinity Blaster, defeating the Strongest Grim Reaper, Pluto.

**Immense Strength**: At the beginning of the series, Issei's strength was considered below average compared to others. After his training with Rias and the others in the mountains, Issei using his Boosted Gear as shown that he could fight on par with Riser's servants. His training with Tannin has enhanced his strength to where he could erase a mountain after using Scale Mail and outclass Diodora who was empowered using Ophis' snake. It is also stated various times in the light novel that his power is equal to that of an Ultimate-Class Devil. Azazel has also stated that among the Young Devils, Sairaorg Bael; the former Strongest Young Devil is the only one able to fight against Issei head-on. After daily training with Kiba, and with the assistance of Sun Wukong himself his strength further enhanced to the point that he can fight against Rizevim Livan Lucifer, a Super Devil. He later showed to be able to fight against Apophis, one of the Three Strongest Evil Dragons, who achieved Heavenly Dragon-Class powers and defeating her using both Infinity Blaster and Longinus Smasher. In Chapter XXX, Baraqiel stated he cannot defeat Issei in terms of raw power. In Chapter XXX, Issei was able to fight on par with Dulio Gesualdo; who is known as the Strongest Brave Saint and Trump Card of Heaven. In Chapter XXX, Issei was able to keep up with Thanatos; who is known as The Strongest Grim Reaper. In Chapter XXX, Issei can fight on par with Vidar in his Ragnarök Earth Berserk using Pseudo-Diabolos Dragon. In Chapter XXX, Ddraig stated that Issei's strength in his Crimson Armor is equal to a Satan-class Devil and that in his Pseudo-Diabolos Dragon, he can fight against Super Devils. In Chapter XXX, Issei was able to defeat Rias in her Forbidden Invade Balor the Princess form, by using a combination of Infinity Blaster and Nyuutron Beam Cannon at the same time. In Chapter XXX, Issei was able to defeat Hades; the God-King of the Netherworld. He later defeated Erebus; the Primordial Greek God of the Darkness by using AxA. His dragonic aura in his DxD form is powerful enough to blow up to 1,000 High-class Devils in a single blow. In Chapter XXX, after unlocking True Dragon Deification he easily overpowered and defeat Tartarus; the Primordial Greek God of Abysss with the help Vali and the rest of Team DxD. He along with Vali were acknowledged by Ajuka as the new Super Devils.

**Master Hand-to-Hand Combatant**: Issei was unskilled in combat at first, but after training with both Koneko and Kiba, he managed to obtain basic hand-to-hand combat skills. He can combine the boosted power from Boosted Gear and dragon aura increases the power of his physical attacks. After training with Tannin, Issei became more skilled in combat, learning how to survive the former Dragon King's assault. In fact, his prowess is shown as he could go toe-to-toe with Sairaorg Bael, a master martial artist in his own right in a fistfight. After daily training with Kiba and even Sun Wukong, he improved his skills to where he could handle the assaults from the likes of even Diehauser Belial and Rizevim Livan Lucifer, who are powerful devils that are skilled in hand-to-hand combat, then overpowered the latter using Diabolos Dragon. In Chapter XXX, Issei using Cardinal Crimson Promotion is able to fight on par with Baraqiel, who infused both his punches and kicks with Holy Lightning. In Chapter XXX, Issei in his Pseudo Diabolos Dragon armor went toe-to-toe in his fight with Vidar, who has excellent powerful kicking techniques even when Vidar was being enhanced by the power of his Ragnarök Earth Berserk armor. In Chapter XXX, Issei demonstrated his experience and mastery of hand to hand combat when he overwhelmed Gressil, a powerful Satan class Devil at least until the latter's "Resistance" ability started to make him more resilient against Issei's attacks, though Issei still had the advantage.

**Master Swordsman**: Though Issei isn't proficient or talented in swordplay like Kiba or Xenovia, he has learned the basics from Kiba, which has been improved from training sessions. As such, he can wield Ascalon instead as an extension of his Boosted Gear. While on the level of sword masters such as Kiba, Xenovia or Irina, Issei does have solid skill enough to deflect strikes from Thanatos' scythe using Ascalon, then fought Vidar using both it and Ascalon II. Issei develops a technique to shoot out his swords at his opponent enhanced by using both Boost and Penetrate. He could block a strike from Kiba using Ascalon. His skills has allowed him to wield all three Ascalon against Angra Mainyu, even using feints against him before stabbing him with his Tail Blade.

**Immense Durability**: Issei was originally very weak and vulnerable, easily hurt by the simplest attack. Through the use of Promotion, he can increase his defense. After his training with Tannin, where he was forced to survive Tannin's continuous assault, Issei's durability greatly improves, along with his daily training further enhanced his durability to the point where his body could withstand continuous usage of the Boosted Gear which he couldn't do so in the beginning. In fact, Issei's durability has been proven several times against opponents like Sairaorg Bael, Cao Cao, Grendel, and many others. In Chapter XXX, Issei can endure Baraqiel's Holy Lightning and continuing to fight despite the intense pain. In Chapter XXX, Issei can withstand Vidar's attacks even when he is wearing his Ragnarök Earth Berserk armor and even his signature move; *Fimbulvetr Shot*, the impact of which sent Issei crashing onto artificial Yggdrasil.

**Immense Speed**: Through the use of Promotion, Issei can increase his speed. In his Balance Breaker state, he can use the booster to further increase his speed. In Chapter XXX, in his Diabolos Dragon form, he was able to appear in front of Rizevim before he can react. He was able to keep up with Vidar in his Ragnarök Earth Berserk. In his Pseudo-Diabolos Dragon form, he was easily able to keep up with Kiba Yuuto, who is famous for his exceptional speed, until Kiba revealed his Drag Knight Boosters.

**Immense Stamina**: Issei originally possesses average stamina. After being reincarnated into a Devil along with his daily training with Rias, Issei obtains more stamina to use the Boosted Gear. Following his training with Tannin in the Underworld, Issei obtains even more stamina, that he could use when in Balance Breaker. He eventually obtains enough stamina to activate his Scale Mail without a countdown. In Chapter XXX, he was able to keep fighting at his best throughout the whole two-hour Rampage Ball Rating Game.

**Expert Magician**: Issei was born with monstrous reserves of mana which upon full release was stated to be able to level half of Kuoh Town. When he unconsciously Illuminated himself for the first time, Issei was able to create a small crater as well as knock three children unconscious from the force of the blast. After having his magic unlocked, Issei was able to learn spells as easily as a fish breathes water. He possesses a natural talent for Light Magic and its derivative, Prism Magic. Issei can also learn elemental magic like other mages.

* **Light Magic**: Issei is capable of using light magic. Issei can also create weapons made of pure light like an angel. When he first learned this form of magic, Issei mimicked the angels, creating light spears and swords.
* **Prism Magic**: Issei can use Prism Magic. Prism Magic allows its user to reflect magical attacks like a mirror reflects light. Issei can also manipulate rainbows, allowing him to use blasts of iridescent polychromatic light.
* **Elemental Magic**: Issei can use elemental magic, excelling in ice, water, and fire magic.
* **Sealing Magic**: Issei has shown some talent in sealing magic.
* **Summoning Magic**: Issei has shown the ability to use summoning magic when he summoned his familiar, Ryuuteimaru. Later, during the Shinto Arc, Issei demonstrated the ability to summon both Ddraig from the Boosted Gear. Issei can only keep them out for six minutes before having to wait one week before he can summon them again.

**Keen Intellect**: Originally incompetent in combat and the use of his Sacred Gear, Issei has mastered its use to greater effectiveness and has rapidly developed to become skilled in combat, being shown holding his own against adept and skilled close combatants such as Sairaorg and Vidar, quickly adapting to the latter's skillful and unique use of his legs in combat rather than his arms. Additionally, he has shown to be capable of compensating against more skilled opponents by thinking up clever strategies on the fly, improvising and exploiting their weaknesses in the middle of a fight, such as taking advantage of Vali's ability to absorb power for himself to overload him with excess energy and incapacitate him, and utilizing Transfer to enhance Kiba's speed to a point he couldn't control.

* **Expert Tactician:** Although he is often smarted and considered an idiot, he is proven himself to be a slightly skillful tactician. He acts as a leader and a tactical fighter, where he uses his brain to fight properly the Hero Faction. Issei claims that his skills are not that enough, but Kiba mentioned that if it is not for his orders they couldn't fight and defend themselves from the sudden attacks of the Hero Faction. Issei demonstrated good tactical knowledge in his fight against Kiba, by exploiting his Transfer to make Kiba lose control of his speed thus negating Kiba's speed advantage. During his fight against Rias, Issei was able to exploit the fact that she was unfamiliar with his Nyuutron Beam Cannon to surprise her during their fight, allowing him to defeat her. Issei is currently learning Rating Game tactics from Ravel.
	+ **Adaptation**: Issei could easily adapt to the conditions and environments around his, allowing his to virtually fight in any possible situations.

**Survival Skills:** Because of his training under Tannin, Issei has developed survival skills.

**Stealth:** Issei has also learned how to mask his presence from people.

**Flight:** While Issei still lacks the ability to fly using his Devil wings, Issei being a former Dragon can fly using his Dragon wings.

### Dragon Abilities

**Dragonification** (龍化, *Ryū-ka*): Having sacrificed his left arm to Ddraig, having it transformed into a dragon's arm in Chapter XXX, Issei's left arm became immune to damage taken from touching Holy objects. In Chapter XXX, due to his new body being created from Great Red's flesh, Issei can now turn any part of himself into that of a dragon by focusing his thoughts on that specific part as he turned his right arm into a dragon to combat three Magicians to sent to attack Kuoh Academy letting him break their defensive magic using a single punch. Issei is able to grow Dragon wings from his back. Unfortunately, once the transformation occurs, he is unable to return it to human form, unless he gets the Dragon energy drained from the transformed body part by either Rias Gremory or Himejima Akeno.

* **Dragon God Physiology**: As a Dragon God, Issei possessed a level of power that made him the strongest and most powerful of all dragon-kind. Issei with this ability is a dragon or draconic being of divine power. The user's power is to be considered utterly fearsome as it's that which no dragon could ever hope to overcome or even equal, making them essentially the absolute pinnacle of all dragons.
	+ **Dracoscience**: He knows everything about dragons and everything related to them. As such, they know everything within the dragons and what lies within and around them, such as the there culture, history, types of species, their skills, secret knowledge etc. The user knows everything when it comes to dragons because all their secrets are revealed, knowing all the ways and reasons of how dragons are and their way of life.
	+ **Environmental Adaptation**: He can survive and adapt to any environment and/or condition, being able to tolerate a wide range of temperatures and levels of moisture, any amount/quality of sustenance, breathable medium, etc. with little or no discomfort.
		- **Aerial Adaptation**: He is able to survive and adapt to extremely high or low air pressure (not becoming disoriented or deprived of the normal breathing capacity), and high wind friction; this is accompanied by an innate immunity to vertigo and/or fear of heights.
		- **Darkness Adaptation**: He is able to survive and adapt to dark environments (especially nighttime conditions), with a circadian cycle programmed for nighttime activity, heightened senses to compensate the absence of light, and perhaps darker coloration.
		- **Mountain Adaptation**: He is able to survive and adapt to mountain environments where the air is thin, as they possess adjusted breathing capacity, high air-pressure tolerance, high cold tolerance and immunity to the effects of vertigo or similar disorientation as well as the ability to move on the mountains without artificial help.
	+ **Dragon Force Manipulation**: He possesses and is able to use strong draconic power. This ability not only grants the user great strength, abilities, and control over numerous variations of draconic energies, but also allows them to overwhelm weaker dragon as well as rival that of powerful draconian entities. He has control of anything that is symbolized as draconian and connected to dragons and draconic like being. They are able to manipulate sacred objects and relics that are connected to dragons and/or draconian power.
		- **Draconic Object Manipulation**: He can create, shape and manipulate any sort of dragon objects, from dragon technology to dragon accessories (such as jewelry), dragon weapons, dragon tools, etc.
		- **Draconic Solidification**: He can solidify or give solid-like properties to draconic power (energy, elements, etc.), with the level of solidity going from loose jelly to metal-like hardness or beyond.
			* **Draconic Constructs**: He can change draconic energy/power into tools, objects, weapons and other items, create semi-living constructs and/or create structures/buildings of varying permanence.
	+ **Draconic Energy Manipulation**: He can create, shape, absorb or manipulate draconic energy, which can be described as spiritual energy that constitutes the life-force that flows within all dragons and through multiple known dragon worlds. Also can be used to create and manipulate the elements.
		- **Dragon Aura**: He can surround themselves in a ferocious draconic energy that can induce fear into the hearts of men and animals alike. He can also manipulate that same energy as well. If the He has the powers or soul of an elemental dragon, He can generate their respective element.
	+ **Draconic Weaponry**: He can create any kind of weaponry that is made from parts of dragon and/or imbued with draconic power, wield them as their own, and make it so that no one is capable of using the weapons except for those who are worthy of its power. The exact power the weapon possesses highly varies on the type of draconic material that makes it.
		- **Draconic Infusion**: He can infuse objects (usually a weapon), beings or powers with draconic power, empowering and energizing them and allowing the user to manipulate their qualities and efficiency.
	+ **Draconic Element Manipulation**: He can manipulate the draconic elements in a various offensive and defensive styles. Draconic elements are elements that are either produced by dragons or elements infused with draconic power.
		- **Elemental Absorption**: He can absorb elements/elemental forces, while removing it from the source, into their body and use it in various ways, gaining some form of advantage, either by enhancing themselves, gaining the drained power, using it as power source etc., either temporarily or permanently.
		- **Elemental Constructs**: He can turn the elemental forces into tools, objects, weapons and other items, create semi-living constructs and/or create structures/buildings of varying permanence. Users who have mastered this ability can use it for almost any situation, creating anything they need.

* **Sin Dragoon Coronation**: The bizarre transformation that is a result of Issei becoming overwhelmed by the anger he has suppressed over the years. Following many traumatic events, the Dragon Gods' wrath grows exponentially without him being aware of it and as he is being tested by the personification of Death, he slowly begins to succumb to his raw emotions. This causes the manifestation of his anger to fully emerge, reforming Issei's body into a monstrous demon-like creature with pale skin and a skull-like head. This form possesses formidable strength and adds further augmentations to Issei's power. But due to the unstable nature of it, Issei's own solar energy could quite literally 'burn' him from the inside out the long he is in the berserk state. Later on, after Issei overcomes his anger, the 'berserk' aspect of Issei's being seems to have been vanquished.
	+ **Draconic Magic**: He is capable of performing dragon-related magical feats, often either taught by a dragon, siphoning magic from a dragon, being magically linked with a dragon, or being a dragon. But it truly depicts magic that is exerted by dragons, since most dragons are described as magical creatures to their very bones, the source of their magic is unknown. The user has the ability to wield this form of magic to cast spells and other magical styles.
	+ **Dragon Manipulation**: He can create, manipulate, and destroy dragons. He control them to do their bidding, helping them during situations, using them against foes, and using them to see locations and gather information about a particular place. He can see through the dragons' eyes that are controlled allowing them to attack others. He can also understand or communicate with them, hence creating and strengthening friendships.
		- **Dragon Creation**: He can create dragons/draconic beings from nothing and bend them to their will, the user can eventually spawn hordes of draconic beings to serve and fight on their behalf.
		- **Dragon Summoning**: He can summon dragons/draconic beings from other worlds to help them fight.
	+ **Mind Control**: He can control the minds of other dragons with targets being completely subject to their mental control. If the victims were placed into a semi-conscious state, they may not have any recollection of the previous actions that they performed while under its effect.

### Divine Abilities

**Immeasurable Divine Power**: As the contractor of Nyx, Issei wields a vast amount of godly power. His sheer strength is noted enough to rank him as one of the strongest beings of the Three Factions, and arguably the most powerful being on planet Earth. As an infant, his power was great enough to be sensed by the inhabitants of Heaven, the Underworld, and the Dimensional Gap. Even at less than half strength, his divine energy is comparable to a primordial-level fighter. His energy is strong enough to hold back the Cosmos Phoenix, a halberd with the destructive force equivalent to one million Holy Flame combined, using only his Ascalon. Even before his Takamagahara training, his divine energy was strong enough for him to be able to sense Yukine's increased Divine Aura as a result of her Diabolos Dragon Void with the her Sacred Gear while fighting Amenominakanushi from a considerable distance away, despite Erebus, Bishamonten, and Shiva, all Primordial Entities, being unable to do so themselves while fighting him directly. His Divine Aura is red golden in color. After his training at the Cosmic Egg, Issei was able to overwhelm four Great Old One simultaneously and then calmly fight on par with a Great Old One using Outer God Form using just his True Ascalon and eventually overpower his foe.

**Primordial Entity Physiology**: Issei can transform into a primordial being, an entity that has existed since or even prior to the beginning of time itself. Primordial Entities were the first entities or beings that come into existence, they form the very fabric of the universe and as such are truly immortal. He is still unused to his powers and is likely to grow stronger with time the more he gets used to his own Primordial Entities abilities.

* **Reality Warping**: He is able to control and bend reality to he whims, capable of altering something as tangible as physics and the universe to something inconceivable like logic. Because of this immense ability, many younger gods are often led to believing his to possess complete omnipotence power.
* **Divine Aura**: He can release and surround themselves in/with energy/matter for defensive and/or offensive purposes, possibly becoming almost untouchable and granting them various abilities/attacks depending of the energy/matter. divine auras may also give the user enhanced physical capabilities such as speed, strength and durability.
* **Astral Projection**: Though he has not showcased this ability as of yet, Issei is able to display the wings of Ddraig and the Yamata-no-Orochi through a form of astral projection, showing them through his shadow. One of the reasons Issei does this is to signify his status as a possessor of Dragons.
* **Absorption**: Issei has the ability to absorb anything that retains solar and/or light essence, as shown during his battle with Erebus. Issei also employed this ability during his fight against Satan, in which he absorbed the Fallen Angel's light spear, which was the size of Kuoh Academy. When his body is physiologically altered to that of a star, he is shown to be able to absorb the stars in space.

**Indomitable Will**: Arguably Issei's most phenomenal trait, is his extraordinary willpower towards adversity. Even when up against an opponent that was more than enough to give him trouble, Issei has more often than not continued fighting no matter the cost. The moment someone has antagonized Issei in any way, he will immediately pursue them, and will absolutely not stop no matter how many obstacles get in his way.

**ZONE**: Issei can utilize 100% of their concentration, allowing them to push their physical and/or mental capabilities to their maximum potential, allowing the mind to perceive and respond without any distraction, obstacles become minor problems while objectives grow significantly easier to accomplish. Since concentration is the learning cornerstone, Issei's mind also becomes quicker to assimilate thoughts and information, He being now able to process information at Immensurable speed. The information becomes instantly recorded on his memory, freeing the mind from its boundaries and making the stored knowledge accessible even when the his is with his power.

**Belief Empowerment**: As a God that was raised on Earth, the level of Issei's potential is somewhat dependent on the thoughts and beliefs of humans. As a result, it is hinted that the genuine love the Hyoudou family have for Issei remains a contributing factor in his growth.

**Hope Embodiment**: Issei become the living physical manifestations or personifications of hope and gain the ability to feed on the hope of everyone and everything including themselves. Issei can convert hope into energy and use it as a full source to extend their own life span or as a weapon. He may never age and may be immune to death unless certain conditions are met.

* **Hope Manipulation**: He can sense and manipulate the hope, including the virtue, of themselves, people, animals and other creatures, whether by increasing, decreasing, causing or otherwise channeling hope, even manifesting the emotional energy to physical level.
	+ **Emotional Energy Manipulation**: He can create, shape and manipulate the energy that is created/generated by the emotions of every/all living things in existence capable of feeling them. He are able to increase, decrease or change it, manifest the emotional energy to physical level, etc.
		- **Emotion Absorption**: He can fully or partially absorb emotions, while removing it from the source, into their body and use it in various ways, gaining some form of advantage, either by enhancing themselves, gaining the drained power, using it as power source etc., either temporarily or permanently. Targets of the draining often lose motivation due to the sudden loss of intense emotions.
		- **Emotion Augmentation**: He can augment any/all emotions/feelings/moods of others, increasing the existing emotions (no matter how small), and affecting others' control over their actions and abilities by overwhelming their confidence, or restraint.
		- **Emotion Detection**: He can sense the presence of emotions, including feelings, moods and their affects, of themselves, people, animals and other creatures. He can sense the presence of others by sensing their emotions.

* **Hope Empowerment**: Issei become stronger, faster, more durable, etc. by hope of oneself and others, possibly unlocking abilities related to the affinity and enhancing the existing powers. Some users may be able draw sustenance from the hope or even slow or stop aging.
	+ **Hope Constructs**: He can change hope into tools, objects, weapons and other items, create semi-living constructs and/or create structures of varying permanence. Issei who have mastered this ability can use it for almost any situation, creating anything they need.
	+ **Hope Inducement**: Issei has the ability to give Hope - defined as "the feeling that what is wanted can be had or that events will turn out for the best". One capable of wielding the power of hope has no hope for themselves, and hopes continually for the rest of the universe and in the future. Insincere hope or hope for one's own gain is unable to manipulate the energies of Hope.
	+ **Hope Perception**: He can discern and instantly understand the hopes of other beings. Issei are able to truly observe the most hidden of desires and dreams within an opponent and use those hopes to their advantage.

* **Existence Manipulation**: Issei can manipulate a given existence and can bring certain things into existence, freely manipulate all existing things, and return them to nothingness once their purpose is extinguished. This applies to all natural and supernatural phenomena alike, as they are but two sides of the same coin in the user's eyes.
* **Divine Force Manipulation**: Issei has control of anything that is symbolized as divine and holy connections to divine and sacred being. They are able to manipulate sacred objects and relics that are connected to the gods, angels, or divine power. With this, he is completely considered worthy of spiritual respect, allowing his to achieve feats that are impossible to be reached by mere mortals.

**Power Augmentation**: He can enhance the powers of themselves and/or others' so that they can reach high level mastery and control instantaneously, even reach a level of power that is usually beyond their limits alone. Users cannot steal or give power, only enhance the ones their targets already have.

### Dream Abilities

**Power of the Primordial Dream**: Issei obtains the Power of the Primordial Dream which originally belonged to his genetic template/mother-figure Great Red, before going to he, who chose to coexist within him. Issei possesses the power to create and manipulate the dreams of others, this includes modifying, suppressing, fabricating, influencing, sensing, and observing dreams as well as nightmares, daydreams, etc. He could produce and modify dreams, bestows nightmares or lucid dreaming, or entraps people in REM.

* **True​ Omnipotence**: Issei possesses unlimited reserves of power, being virtually omnipotent and almighty in every aspect. He transcends the concept of Existence and Nonexistence, being able to control all that there is and is not, even things that are deemed to be conceptually and logically impossible. His power is virtually unlimited and allows him to do anything that he desires. No being can reach his level of power and killing him is impossible, making him completely invulnerable in any way that tries to destroy his physical or spiritual form. He can easily deny the powers of the entities below his power. However, he is not invincible. Azathoth and Yog-Sothoth have shown themselves to be afraid of Issei.
	+ **Destruction**: Issei can utterly destroy things. Depending on the user, this could be anything and everything from small objects to entire galaxies or universes and possibly even abstract concepts and/or natural forces/laws. Notably, users of this power still have limits - if they lack any limits then this would be an example of Absolute Destruction. What those exact limits are will depend on the user. If the He is able to remove something completely and utterly without leaving anything behind, it may instead be a form of Erasure.
	+ **Creation:** Issei can create organic or inorganic matter from nothing, either as finished objects or simply unfinished elements. Higher level He can create anything they can think of, whether conceptual or sentient. This includes the creation of energy, souls and life of any complexity, dimensions or realities, stars, etc.
	+ **Omni-Manipulation**: With Power of the Primordial Dream, Issei can manipulate anything, absolutely everything -- be it physical (matter, energy, the space-time fabric, etc.); or metaphysical (soul, mind, life, death, logic, aspects of reality, and even concepts).
* **True​ Omniscience**: Issei knows almost everything in existence while being blocked from certain details or being limited in other ways, possibly only being able to see one timeline or universe, or have just small patches of information that are missing or blocked out. Thus allowing one to keep their sense of free will and uncertainty.
	+ **Chronical Perception**: Issei can see every event across all of the infinite timelines simultaneously. He knows instantly when and how something happened or will happen regardless of what timeline an event occurred.
* **True Omnificence**: Issei can create anything without limits, including concepts, existence, reality, and even the totality itself. She can also create from nothing or even to create one thing from another e.g. manifesting an image from a comic book, creating life from the dead, and duplicating anything. He can create basically anything they choose on an unlimited scale.
	+ **Almighty Object Manifestation**: Issei can summon/create objects of unlimited power out of nothing with powers, appearance and effects shape to the users inner desires. He can bring forth objects of any kind which can posses brand new abilities of any level.
* **Reality Warping**: Issei has the power to control and bend reality to his whims, capable of altering something as tangible as physics and the universe to something inconceivable like logic. Because of this immense ability, people of the moonlit world are often led to believing him to possess omnipotence power, only to be rivaled by the Akashi Kyoya and Nyx.
	+ **Teleportation**: He could teleport to anywhere within reality without the need for the location's exact coordinates. As shown in Chapter XXX, he could also summon forth Dragons to his side without the need of a Dragon Gate.
		- **Apportation**: He could forcefully teleport anyone or anything away from him, as long as they aren't already blessed by an angelic or demonic being.
* **Cosmic Awareness**: Issei is aware of everything that would affect him, his creations, and the world as a whole on a universal scale. He also possesses a connection with the natural order and could feel shifts and changes every time actions had and is being done that could potentially unbalance the natural order.
	+ **Cosmic Knowledge**: He possesses immense knowledge about the universe. He is aware of most things such as powerful spells, advanced technology, the locations of certain people, etc. despite not being out of the Dimensional Gap for centuries.

* **True Omnificence**: hE can create anything without limits, including concepts, existence, reality, and even the totality itself. He can also create from nothing or even to create one thing from another e.g. manifesting an image from a comic book, creating life from the dead, and duplicating anything. He can create basically anything they choose on an unlimited scale.

* **Spatial-Temporal Lock**: Issei exists outside of time and space and as such is immune to just about anything that would affect or harm him: if time should stop then the user would not be affected. If reality would change, the user would remember both the previous and have knowledge of differences from the old to the new. If the area around the user explodes or the planet which they are on vanish or does not exist any more the user is not affected since they do not exist inside space.
* **True Omnipresence**: Issei is present everywhere at the same time, referring to an unbounded or universal presence. It is related to the concept of ubiquity, the ability to be everywhere and nowhere (at once). He usually an incorporeally present like an invisible force of being that's literally everywhere yet unseen, felt or heard unless they wish to be interacted with, positively or negatively effecting any and all things in existence by the users presences and will.

* **Immortality**: Issei is absolutely immortal, and cannot die, age, get sick, be permanently wounded, is absolutely self-sustained and, as their mind and soul are as immortal as their biological bodies, they are immune to mental/spiritual damage. Any injuries the user suffers will immediately heal, even if the user's body is disintegrated or blown up or completely erased and even if the He is completely destroyed to the sub-atomic level, they will still return to life. Alternately, some users are absolutely immune to all harm, and can never die from any natural causes. Either way, they are inerasable and are unaffected by time manipulation of any level. Issei completely transcend the concept of death itself, though many users transcend both the concepts of life and death.
	+ **Immunity:** He is immune to all forms of curses, poisons, and diseases that don't have the Anti-Dragon trait. He is also susceptible to immensely powerful poisons of angelic and demonic origins such as Samael's blood.
	+ **Nigh-Invulnerability:** He is impervious to all mortal weapons as only extremely powerful supernatural weaponry is capable of affecting him. He is also, to some extent, resistant toward Dragon-Slaying weapons as they are only capable of harming him, not killing him.
	+ **Regeneration:** He could regenerate every single part of his body, down to his cells, in a few seconds, thus making it nearly impossible for him to receive permanent damage.
	+ **Flight:** Issei is capable of flight, both with and without the usage of his wings.

* **True Draconic Form**: After discovering the true nature of Great Red's identity and gaining full knowledge over the rules of her territory, as well as inheriting the title of Primordial Entities of Dream from her, Issei attained the position of ruler and Sucessor of the Great Red of her fragment, obtaining full domain over it. He exists on a higher plane of existence than everything else in his multiverse, and the world shapes itself to his will under this state, with even attacking him through conventional means being impossible without his direct permission, and he can similarly decide who enters and who leaves it, and what kinds of magic are possible to be utilized within its boundaries. In addition, he can weave stories and tales on a far more advanced scale than other higher-order beings, being able to manipulate countless fragments to piece together his own plotline, as well as of rewriting the resulting structure as he pleases.
	+ **Omniverse Manipulation**: Issei can manipulate all/every universe that has, never and will be with infinite/unlimited scale, manipulate *everything* in every parallel reality, timeline, break any boundaries, etc. in every universe in the Omniverse.
		- **Omni-Embodiment**: Issei such a powerful force, rather than a power, she is the Totality, since there are no names that define. Issei is the embodiment of everything imaginable, unimaginable, possible, impossible, existent, non-existent, known, unknown, thinkable, unthinkable, created, uncreated, discovered, undiscovered, fictional, nonfictional, perceived, unperceived, etc. thus they have every/any power/ability.
			* **Omniverse Creation**: Issei can create the infinite collection of realities, universes and multiverses known as the omniverse and everything that occupies them, including it's residents, environment and locations. He can create the residents with roles, powers, and skills to inhabit their omniverse.
			* **Omniverse Destruction**: Issei can destroy the entire omniverse (a set of infinite universes, realities, and multiverses) and everything in it.
			* **Omni-Absorption**: Issei can absorb any/all concept, power, universal definition, law, boundary, etc., while removing it from the source, into their body and utilize it in some way.
			* **Omni-Detection**: Issei can sense the presence of any/all concept, power, universal definition, law, boundary, etc. and gain detailed understanding about everything they sense, including the amount and size of it and whether it is hidden.
			* **Omni-Negation**: Issei can negate and nullify any/all concept, power, universal definition, law, boundary, etc. making them immune to anything and everything.

* **Primordial Force Manipulation**: Issei can control, alter, create, and manipulate anything and everything created by the primordial force, the unique source or origin of every universal concept; in other words, the primordial force that had generated everything, giving them the true position of a Four Great Gods and Monotheistic Deity.
	+ **Absolute Force Manipulation**: Issei can create, manipulate and shape force in all its forms, whether physical, transcendent, natural, spiritual, mental, cosmic, etc. i.e. all the absolute forces that make up the flow and nature of reality. He can turn a tornado into a gentle breeze, bring a raging tsunami to a halt or annihilate a continent simply by slamming ones palm into the earth, provided the user understands the natural forces required for continental destruction

* **Omnilock**: Issei cannot be affected by anything, even temporal paradox or reality warping; and are immune to virtually everything, even Universal Irreversibility and Ultimate Erasure. Outside of everything: space, time, non-space, non-time, duality, probability, improbability, possibility, impossibility, nonexistence, (absolute) nothingness, existence, etc.
* **Higher-Dimensional Manipulation**: He can manipulate, destroy, and create greater spatial and temporal dimensions than 3-D space, such as 4-D space and above. According to infinity in projective geometry, and the concept of a Hausdorff dimension, each higher spatial (or added temporal) dimension is a more than countably infinite number of times greater than the preceding number.
* **Primordial Reality Manipulation**: He can create, shape, and manipulate the primordial reality, the reality before reality or before the concept of reality. This allows them to control the original reality and blueprint/template/drawing board for what reality would become after the creation of existence, including the principles, concepts, laws and forces that would later come to define existence.
* **Creation-Destruction Manipulation**: He can manipulate events that deal with the beginning or end of universes/multiverses and how they happen, such as the Big Bang, Big Bounce and Big Melt for the beginning of universes and the Big Crunch, Big Freeze and Big Rip for the end of universes. He can manipulate the acceleration or expanding of universes, and thus Dark Energy as it deals that.

**Dream Embodiment**: As the Dragon God genetic template of Great Red, Dragon Goddess of Dream. Issei have the power to be the embodiment of dreams and have complete control of their dreams and the dreams of others. Issei can attack or protect others in dreams as well as affecting the real world to some degree via dreams or daydreams

* **Dream Manipulation**: As the embodiment of dreams, Issei possesses the power to create and manipulate the dreams of others, this includes modifying, suppressing, fabricating, influencing, sensing, and observing dreams as well as nightmares, daydreams, etc. He could produce and modify dreams, bestows nightmares or lucid dreaming, or entraps people in REM.
* **Dream Inducement**: He can induce all kinds of dreams, including good dreams, bad dreams (nightmares), lucid dreams, daydreams, etc., into others or themselves.
* **Dream Constructs**: He can turn dreams into tools, objects, weapons and other items, create semi-living constructs and/or create structures of varying permanence. Issei who have mastered this ability can use it for almost any situation, creating anything they need.
	+ **Dream Attacks**: Issei can release/use dreams in combat to various attacks.
		- **Dream Ball Projection:** Create and launch spheres of dreams.
		- **Dream Beam Emission:** Release beams of dreams.
		- **Dream Blast:** Release dreams over a specific target area.
		- **Dream Bolt Projection:** Release low powered projectiles of dreams.
		- **Dream Bomb Generation:** Create bombs/explosions of dreams.
		- **Dream Breath:** Discharge dreams from the mouth.
		- **Dream Bullet Projection:** Fire in short sequence over a wide area.
		- **Dream Cutting:** Use dreams to cut opponents.
		- **Dream Infusion:** Empower and energize anything touched or used (usually a weapon) with dreams.
		- **Dream Pillar Projection:** Project dream pillars.
		- **Dream Spike Projection:** Project dream spikes.
		- **Dream Vortex Creation:** Create spiral/vortex of dreams.
		- **Dream Wave Emission:** Send out a wave of dreams that repels everything.
		- **Expanding Dream Bolts:** Project dreams that expands rapidly on contact with an object.
		- **Formulated Dream Blasts:** Release blasts of dreams in a form of a creature or object.
		- **Hand Blasts:** Release dreams blasts from hands.
		- **Hidden Attacks:** Channel attacks through a medium.
		- **Missile Generation:** Create missiles of dreams.
		- **Omnidirectional Dream Waves:** Send out a wave of dreams in all directions.
		- **Optic Blasts:** Emit dreams from one's eyes.
		- **Reflective Attacks:** Release attacks of dreams that can bounce off of any surface.
		- **Scatter Shot:** Release dreams blasts that split into multiple fragments.
		- **Sword Beam Emission:** Release dreams from swords and other such bladed weapons.
		- **Wave Motion Blast:** Launch a massive wave of dreams.
		- **Zap:** A tiny short release of dreams to cause pain or discomfort, usually too low-powered to be destructive.

* **Dream Creation**: He can create anything (whether organic or inorganic) they want via their dreams: if they dream of a massive amount of cash, when they awake, cash will be around them. Any organism and object in the dream will appear in the real world.
* **Dream Materialization:** He has the power to materialize the dreams and nightmares of others into the real world, thus turning their dreams into reality.
* **Dream Imprisonment:** He can create a false reality in dreams and trap people inside their dreams/nightmares. His target's body may stay in waking while their mind is trapped and possibly disappear into the dream entirely.
* **Dream Absorption:** He could absorb the dreams of others to further empower himself.
* **Dream Destruction**: He can destroy dreams or the dreamworld, making people dreaming dreamless, affecting their minds in a negative way, and destroying dream entities. If the users dreams are becoming reality, this power may have an effect on reality as well.
* **Dream Interaction**: He can physically interact with dreams, allowing a number of effects. Note that this ability doesn't make dreams physical, it just allows the user to interact with them as if they were physical.
* **Dream Observation**: He can observe/view the dreams of other people, seeing what others are dreaming, whether it is pleasant or not, and sometimes precinct the future based on these dreams.
* **Dream Replication**: He can copy and store the dreams of others, immediately gaining access to those dreams. This could be used to learn more about the other dreamer, provided the dream tells anything about the dreamer.
* **Dream Sharing**: He can share their own dreams with others or cause others to share the same dream, allowing those people to interact with each other or the user while they are dreaming.
* **Dream Communication**: He can communicate with other beings through their dreams, allowing them to communicate with others who may be incapable of physical speech or communicate if unable to physically speak.
* **Oneiromancy:** Issei could use dreams as a means to gain insight into a question or situation.

**Dream-World Manipulation**: Issei can create, shape and manipulate the Dream-World and everything in them, including all the aspects of urban areas, from the purely physical ones and also mythical/conceptual ones.

* **Organic Manipulation**: He can create, shape and manipulate everything and anything organic, both organisms and organic matter. He can create, manipulate, shape, transform, heal and/or destroy everything that lives, has lived or comes from either of the above.
* **True​ Omniscience:** Issei has the ability to know and understand nearly everything that occurs within one's dreams. However, he couldn't understand or decipher the dreams of those who were under the protections of higher or equal entities.

**Illusion Embodiment**: As the Dragon God genetic template of Great Red, Dragon Goddess of Dream. Issei becomes the embodiment or personification of illusions, granting them absolute control over all illusions.

* **Illusion Manipulation**: He can create, shape and manipulate illusions, causing targets to see, hear, touch, smell and/or taste things which do not actually exist or cause them to perceive things differently from what they truly are. He can create complex and detailed worlds, others may be able to only alter the way they or the target are perceived.
	+ **Hallucination Solidification:** Issei can Solidify illusions.
	+ **Holographic Projection:** Issei can Project illusions based on only sight.
	+ **Illusion Attacks:** Issei can Attack using illusion energy.
	+ **Illusion Constructs:** Issei can Create constructs out of illusions.
	+ **Illusion Destruction:** Issei can Destroy illusions.
	+ **Illusion Generation:** Issei can Create/generate various types of illusions.
	+ **Illusion Negation:** Issei can Negate illusions.
	+ **Illusion Reflection:** Issei can Reflect any illusions that are used against themselves.
	+ **Illusionary Environment:** Issei can Change the environment with illusions.
* **Illusion Awareness**: Issei is completely aware at all times of the true reality around them, potentially seeing through an optical and/or mental illusions that others attempt to deceive them with.
* **Illusion Empowerment**: Issei become stronger, faster, more durable, etc. Issei come in contact with illusions/illusory power, possibly unlocking abilities related to the affinity and enhancing the existing powers. Issei may be able draw sustenance from the illusion/illusory power or even slow or stop aging.

* **Illusion Interaction**: Issei can interact with illusions, whether they are mental, hallucinations, or normal illusions, interacting with them as if they were actually real.
* **Illusion Transformation**: He can transform tangible objects into illusions. For example; if an enemy is about to attack the user. Issei would be able to make the attack and or the attacker into a harmless illusion. As well as obstacles, and so on.
* **Illusory Combat**: He combines illusions with combat, making them very unpredictable and hard to keep track of, and can pull off surprise attacks more easily.
* **Layered Illusions**: He can create layers of illusions or illusionary effects, allowing them to deceive anyone's senses by making target think they have escaped an illusion only to find there is yet another layer/level to it. Depending on how many layers of illusions there are, they may be able to cause physical harm to the target.

**Time Perception Manipulation**: He can control the perception of time of oneself and others, influencing the senses to speed up insanely so that the body fails to keep up, making the person feel like everything is happening so slowly. Issei can also slow down the senses to make everything to appear at a fast pace so that the person cannot react in time or even influence the senses to the point where everything appears to have stopped and which causes the person to be paralyzed and stop moving completely.

**Randomness Manipulation**: He can manipulate the randomness of anything, manipulating anything change from one thing to another, depending on what it is, with no particular order or pattern being followed as they do so.

**Energy Manipulation**: He can create, shape and manipulate energy, the capacity to cause change: one of the most basic quantitative properties of a system, such as an object or a field of energy. He can be transformed (converted) among a number of forms that may each manifest and be measurable in differing ways. The law of conservation of energy states that the (total) energy of a system can increase or decrease only by transferring it in or out of the system, thus the total energy of a system can be calculated by simple addition when it is composed of multiple non-interacting parts or has multiple distinct forms of energy.

* **Energy Erasure:** He could erase/eliminate any/all types of energy from everything in existence, including sentient beings, inorganic matter, nature, planets, etc. Since most of powers require a certain amount of energy to work the user of this ability can normally make powerful opponents useless. All energy forms are vulnerable to this ability, whether Spiritual, Physical, Magical, Divine, Demonic, etc.

**Universal Force Manipulation**: He can manipulate all universal forces (Cosmic, Space-Time, etc.) and bend them to their will. The power to control cosmic energy, manipulate space-time, generate and control electromagnetism, gravity, cosmic fire, etc. is in the hands of the user.

* **Aether Manipulation**: He can create, shape and manipulate Aether, a powerful and unique celestial element said to flow throughout the universe. Commonly recognized as the essence breathed by gods in the same way humans breathe air, Aether is a power that allows control over elemental, cosmic, spiritual, and transcendental forces. Regarded as divine power, users that can control Aether are considered god-like, essentially becoming invincible.
* **Nether Manipulation**: He can create, shape and manipulate Nether, the "Chthonian Element" that flows through the realms of the living, and the Dead. Nether is most known as the substance that makes up the Underworld, a subterranean dimension where all souls go when they pass on. Nether is very similar to Aether “the Celestial Element” in that it is from a Plane that exists between the planes of both matter, and energy.

**Multiversal Manipulation**: He can manipulate the entire multiverse and everything within. The multiverse is the collection of all parallel universes of a certain universe regardless if it’s fictional or real. Issei may be limited to control over their own multiverse or the multiverse of a particular universe. Advanced users of this power can manipulate multiple or all multiverses.

* **Multiversal Embodiment**: He can become or already is the embodiment of the multiverse itself, and therefore they have absolute control over everything inside of it - time, space, reality, causality, probability and everything else - without limits.
	+ **Universal Force Embodiment**: He becomes a physical manifestation or personification of universal forces. As a result, he has limitless control over and immunity to it.
		- **Universal Force Manipulation**: He can manipulate all universal forces (Cosmic, Space-Time, etc.) and bend them to her will. The power to control cosmic energy, manipulate space-time, generate and control electromagnetism, gravity, cosmic fire, etc. is in his hands.
			* **Big Bang Inducement**: He is able to create a Big Bang, starting a new universe or create a smaller one inside a pre-existing universe. He can condense the big bang into a type of energy blast capable of destroying an entire universe.
* **Totality Manipulation**: He can manipulate the concept of totality, and is capable of manipulating everything in it, which is the entirety of everything/anything. They can manipulate the totality, which is forever the undisputed and absolutely largest thing conceptualized and imagined by any/every mind that has, will and never exists, it is even larger than the omniverse. He absolutely encompasses anything and everything, making the user essentially omnipotent.

## Equipment

**Boosted Gear** (, *Būsuteddo Gia*): Issei's Sacred Gear and main weapon. The Boosted Gear is one of the 13 Longinus which holds the spirit of the Welsh Dragon, the Red Dragon Emperor, Ddraig, one of the Heavenly Dragons. It is said to have the power to kill a god when fully mastered. Boosted Gear takes the form of a red gauntlet on the wielder's left hand that has the ability **Boost** , which doubles the user's power every 10 seconds without limit; and its sub-ability which can **Transfer**, the multiplied power to a being or object and it can even be focused on certain parts of the user's body such as the eyes for enhanced vision. Issei can use Boosted Gear to strengthen his physical abilities and demonic power. Later, it gained **Penetrate** to bypass any defensive abilities (including Rizevim's Sacred Gear Canceler) that would otherwise prevent his attacks from landing, however, it does not negate the deactivation of Balance Breaker. Penetrate's effects can also be channeled through any part of the body, such as the eyes, making it capable of seeing through anything, even women's clothing.

* **Boosted Gear: Scale Mail** (, *Būsuteddo Gia: Sukeiru Meiru*): The Balance Breaker of Boosted Gear that creates a Red Dragon Armor and Issei's primary battle form. Issei first activated his imperfect version of Scale Mail in Chapter XXX, by making a pact with Ddraig by giving his left hand to the latter. During his first battle against Vali Lucifer, Issei used a bracelet given to him by Azazel which allowed him to use the imperfect version of Scale Mail for less than 15 minutes. Issei completed his Balance Breaker during his fight against Kuroka, poking Rias' breast to trigger the evolution. From this point, Issei can **Boost** without the 10-second limit and it strengthens his powers and abilities. At the back of his armor, there are two rocket boosters that give a temporary boost of speed and flight. After the activation of the Juggernaut Drive, Issei's Scale Mail gained a pair of retractable Dragon Wings with Pteranodon-like claws that he can use as arms.

* **Juggernaut Drive** (, *Jagānōto Doraivu*): A form unique to the Boosted Gear, Divine Dividing and Zephyr Shift. The Juggernaut Drive temporarily removes the seal placed on the Heavenly Dragons granting the user immense power. The Juggernaut Drive, however, causes the user to lose sanity while having their lives devoured by power. Issei indirectly activates an incomplete version of this form when he thought Asia was killed by Shalba Beelzebub with the negative emotion overpowering him thus triggering the Juggernaut Drive. In this form, Issei's speed is greatly increased to the extent that it can be hard for one's sight to follow. This form is also capable of creating Dragon arms and blades from the gems of the armor. It contains a small cannon within the mouth of the helmet that shoots out a laser beam.
	+ **Longinus Smasher** (ロンギヌス・スマッシャー *Ronginusu Sumasshā*): It is finishing that is the most powerful attack of the Boosted Gear. A launcher appears from the chest of the form that is capable of shooting a powerful energy beam of immense destructive power.
* **Illegal Move Triaina** (, *Irīgaru Mūbu Toriaina*): The Illegal Move Triaina is a specialized technique used by Hyoudou Issei that changes his Scale Mail armor into three different forms based on the Evil Pieces system.
	+ **Welsh Sonic Boost Knight** (, *Werushu Sonikku Būsuto Naito*): Triaina's Knight form. In this form, Issei possesses enormous speed that far surpasses Sairaorg's speed, but to make full use of it, Issei must shed his excess armor, causing it to become thin to the point where it has low defense, making him vulnerable to powerful attacks.
	+ **Welsh Dragonic Rook** (, *Werushu Doragonikku Rūku*): Triaina's Rook Form. In this form, Issei possesses a massive amount of power and defense but has a low body maneuvering speed because of the massive, thickened armor.
		- **Solid Impact** (ソリッドインパクト, *Soriddo Inpakuto*): It's respected finishing move that delivers a punch that has its power and speed increased by nailing the percussion hammer located at his elbow.
	+ **Welsh Blaster Bishop** (, *Werushu Burasutā Bishoppu*): Triaina's Bishop Form. In this form, Issei possesses an enormous amount of demonic power, which he applies it to the two cannons at the back of his armor.
		- **Dragon Blaster** (ドラゴンブラスター *Doragon Burasutā*): It's respected finishing move that is a severely boosted equivalent of his Dragon Shot capable of leveling battlefields and briefly warp space-time. The drawbacks to that the amount of time it takes to charge the cannons and stamina lost with each shot.
* **Cardinal Crimson Promotion** (, *Kādinaru Kurimuzon Puromōshon*): The Scale Mail's Queen form that is achieved by gaining the "True Queen". This form changes the color of Issei's Scale Mail armor from red to crimson. Cardinal Crimson Promotion incorporates all three Evil Pieces traits, making it the most balanced and most powerful form of Issei's Scale Mail. In this form, Issei is capable of using enhanced versions of the Illegal Move Triaina's abilities. This form, however, is still unstable and requires mastering the three forms of Illegal Move Triaina to stabilize its powers. In Chapter XXX, it is revealed that Issei can enter True Queen without having to chant, and due to Diabolos Dragon God mode, its power has been increased.
	+ **Solid Impact Booster** (ソリッド・インパクト・ブースター, *Soriddo Inpakuto Būsutā*): By morphing one of the armor's gauntlets into Welsh Dragonic Rook's, it allows it for an enhanced version of Solid Impact. It can also be used in tandem with Ascalon to deal further damage to Dragons.
	+ **Crimson Blaster** (クリムゾンブラスター, *Kurimuzon Burasutā*): An enhanced version of Welsh Blaster Bishop's "Dragon Blaster" that shoots a powerful beam from the wings of the armor.
	+ **Dividing Wyvern Fairy** (, *Dibaidingu Waibān Fearī*): Originally taking the form of **Dividing Gear** (, *Dibaidingu Gia*), a white gauntlet on Issei's right hand which he obtained in his initial battle against Vali in Chapter XXX. Issei placed one of the jewels on Vali's armor to him, creating the Dividing Gear which allows him to use Albion's dividing powers. This ability, however, reduces Issei's lifespan and thus was banned by Azazel. In Chapter XXX, Issei is no longer able to use Dividing Gear after gaining a new ability that allows him to create small white Wyverns from the gems of his armor that can not only **Divide** but can also **Reflect** incoming attacks. Unlike the Dividing Gear, It only requires Issei's stamina rather than reducing his lifespan. In Chapter XXX, Issei manages to change the white Wyverns red at will where they are able to use Ddraig's powers of **Boost**, **Transfer** and **Penetrate** instead. After training with Rias, Issei manages to make use of the red Wyverns to attach themselves on Rias to create her own variation of the Boosted Gear Scale Mail armor called **Crimson Extinct Dragonar** (, *Kurimuzon Ekusutinkuto Doragunā*). Issei also made use of the red Wyverns to attach themselves on Xenovia to create her own variation of the Scale Mail armor called **Crimson Destruction Dragonar** (, *Kurimuzon Desutorakushon Doragunā*).
	+ **Longinus Smasher** (ロンギヌス・スマッシャー, *Ronginusu Sumasshā*): In Chapter XXX, Issei gains access to this ability when the Red Wyverns used **Boost** on him while in this form. An ability initially available to Juggernaut Drive that from the chest appears a launcher that fires a powerfully destructive beam. This, however, leaves strong fatigue on Issei as it drains a lot of his stamina and depending on how one uses it, it can change the environment. Due to its immense power, this ability has a very long recharge period, lasting at least a month.
	+ **Tail Blade** (テールブレード, *Tēru Burēdo*): Using the Ascalon II Prototype, Issei with his tail of his armor can attack with its blade and lengthened the tail towards his enemies at high speed.

* **Diabolos Dragon God** (, *Diaborosu Doragon Goddo*): This form is the result of Issei borrowing Ophis's power. The armor undergoes further change, as its color changes to be both crimson and black and adding a second set of wings. The power this form grants is so great that it overwhelms Rizevim Livan Lucifer's Sacred Gear Canceler, previously thought impossible. **Boost** has been changed to **D∞D** as Issei powers up in this form with the **∞** symbol emerging on all of the gems. According to Issei, he was able to use this form because his body was created with Ophis's power and Great Red's flesh. Even so, Issei can only sustain this form for a short period of time, followed by pain that makes death pale in comparison. After the battle against Apophis, Ophis adjusted DxD into DxD G, removing the infinity in it and dubbing the form *Pseudo-Dragon Deification* (疑似龍神化, *Giji no Ryūjin-ka*)*.* The form can only be maintained for three minutes at most, with the time limit becoming shorter by attacking or defending to the point it can last only ten seconds. In Chapter XXX, Issei reveals the ability to perform *Partial Pseudo-Dragon Deification* (部分龍神化, *Bubun Ryūjin-ka*) on his left arm, allowing him to use his Dragon God Aura to a lesser extent with less stamina consumption. With this technique, Issei can combine his Dragon God aura into both Solid Impact Booster and Dragon Shot. In Chapter XXX, after drinking the miracle drug Amrita, Issei can maintain his Pseudo-DxD form for 88 minutes in combat. During his fight with Angra Mainyu, Issei unlocks *True-Dragon Deification* (真の龍神化, *Shin no Ryūjin-ka*) which is described as having Devil, Dragon, and God aura. Erebus notes that Issei's power in this form is even greater than when he was in Pseudo-DxD.
	+ **Infinity Blaster** (インフィニティ・ブラスター, *Infiniti Burasutā*): A further enhanced version of Crimson Blaster, the wings contain cannons that shoot out a powerful blast of red and black aura that leaves even Rizevim injured to an extent that his body is almost fatally damaged. By using it, DxD G's time limit of three minutes is cut down to ten seconds. After drinking miracle drug Amrita, Issei has overcome this weakness and can maintain his armor after shooting Infinity Blaster.
	+ **Longinus Smasher** (ロンギヌス・スマッシャー, *Ronginusu Sumasshā*): The form is not only capable of this move, but the blast it shoots out has been enhanced with the power of infinity, delivering further damage. It can also be used in tandem with the Infinity Blaster, fusing the two blasts into an even more powerful attack.
	+ **Blazing Inferno of Scorching Flames** (, *Itsu Eki no Enka*): An ability that was sealed by the God, which Issei managed to unlock upon using his DxD form for the second time in Chapter XXX. Issei releases a powerful breath of fire that can incinerate anything, flames that never go out once ignited as they continue to burn even after being reduced to ashes and can probably burn the soul until nothing remains. The only existences known to be immune to these flames are Albion, Ophis, and Great Red. Its area of effect can cover an entire island.
	+ **Red Dragon Emperor** **Ddraig Manifestation** (赤龍帝ドライグ顕現, *Sekiryūtei Doraigu Kengen*): Due to drinking the miracle drug Amrita, Issei gained the ability to summon Ddraig into battle after the [8] countdown on the right gauntlet reaches zero.
	+ **Dress Break DxD** (, *Doresu Bureiku DīDī*): By using his Dragon God aura, Issei can increase his range that halts a female target’s movement, and by strengthening his left hand he can destroy their clothes without even touching them.

* **Apocalypse AnswerArms** (, *Apokaryupusu ansāāmuzu*): Issei's AxA form. This form is the result of Issei combining with his familiar Ryuuteimaru, who manifests Great Red's power due to him being Issei's familiar thus allowing him to make use of Great Red's aura in Issei's body. The power of this form is so great that it overwhelms Tartarus, a Primordial God in Greek mythology. It has the power to destroy the entire world with its destructive power. Because of the weapons that were installed in Ryuuteimaru, Issei has gained new abilities in this form. The drawback of this form is that it has an extremely high consumption rate which gives it a short time limit. Furthermore, Ryuuteimaru is unable to move for a few days and Issei himself suffers fatigue for a few days. It is determined that these burdens compared to DxD G are much lighter.
	+ **Revelation Barrier** (レベレーション バリアー, *Reberēshon Bariā*): Creates a stronger barrier around the body and is powerful enough to withstand attacks from gods such as Tartarus.
	+ **Revelation Blade** (レベレーション ブレード, *Reberēshon Burēdo*): With four arms of his Apocalypse AnswerArms form, each of the arms carries a aura blade known as ***Apocalypse Ascalon*** (アポカリュプス・アスカロン, *Apokaryupusu Asukaron*), which can easily cut through anything like Tartarus’ tentacles.
	+ **Revelation All-Range Blaster** (レベレーション オールレンジ ブラスター, *Reberēshon Ōrurenji Burasutā*): Similar to Cardinal Crimson Promotion and Diabolos Dragon God, Apocalypse AnswerArms has many cannons to fire powerful blast of auras that can destroy Tartarus’ magic barriers like paper and destroys almost half of his body, even as Issei held back his power. The blast of destructive energy is so powerful it can alter the environment and is strong enough to destroy the artificial space created Dimension Lost. Issei states that the blast is comparable to several Infinity Blaster's blast attacks combined.

**Ascalon** (アスカロン, *Asukaron*): A holy sword given to him by the Archangel Michael, after Ascalon had gone through a number of modification from the current leaders of the Three Factions it could be wielded by Issei, who wasn't a natural-born Holy Sword wielder and dragon host. He was also able to store it inside of his Boosted Gear and the blade emerges from the gauntlet when called. In the anime, it is shown that Issei is able to extend the length of the blade. It is also stated during the Rating Game match against Sona that Ascalon has been imbued with the dragon aura of Ddraig, resulting in an enormous boost in power. Issei learned how to channel the Dragon Slayer power of Ascalon into his punches, allowing him to harm Dragons more easily. Later, Issei managed to combine Ascalon's Dragon Slayer ability with his Crimson Blaster. In Chapter XXX, Issei is also shown to be able to endow Ascalon with **Penetrate** and **Boost**, with the effect staying even after he launches it as a projectile against Vidar.

* **Ascalon II** (アスカロンII, *Asukaron II*): The second version of Ascalon. A long sword that releases holy aura, but is more of a dragon sword rather than a Holy Sword. Issei keeps this sword within his right gauntlet that was free.

**Ascalon II Prototype** (アスカロンII プロトタイプ, *Asukaron II Purototaipu*): The initial prototype model of Ascalon II that Issei used. Due to being created for Issei's use, other people cannot use it which is why the Vatican team that created it left it to him. Although it does not have the same ability as Ascalon II, it is still quite strong. Issei fused it to the tail of his armor to create the Tail Blade ability to suprise enemies with a third arm.

### Formerly

**Mjolnir Replica**: During the battle against Kári, Issei was temporarily lent a replica of the legendary war hammer used by the Norse God of Thunder. At first, he was unable to wield it due to harboring evil thoughts, which were his perverted desires, though he became capable of using it after being blessed by Chimune Chipaoti. He later returned the hammer after Kári's defeat.

## Quotes

* *"I’m going to become a Harem-King!*" -Issei shouting out his dreams.
* *"I’m dumb so I don’t know anything about “foreseen” or “checkmate”. But I can still fight. I can continue fighting as long as I can crunch my fist!"*
* "*President Rias Gremory's virginity belongs to me!*" - Issei.
* *"President! I don’t have talent for swords like Kiba! I’m not a genius like Akeno-san at using demonic-power! I don’t have a crazy strength like Koneko-chan, nor do I have a healing power like Asia! Even still, I will become the “Strongest Pawn”! For you, I will even beat God! With this Boosted Gear! My only weapon! I will make sure that I will protect you!"* -Issei to Rias Gremory.
* *"Then I will give my right arm as a price next time. Then my eyes if another one comes in. I will keep on saving President. That’s the only thing I can do. But I will definitely come and save you. That’s because I am Rias Gremory’s [Pawn]."* -Issei to Rias Gremory.
* *"Kibaaaaaaaa! Cut down both Freed and Excalibur! You are the “Knight” of the Gremory group and my comrade! My friend! Fight Kibaaaaaaa! Don't waste their feelings and spirit!"* -Issei to Kiba Yuuto.
* *"...Are you scared? Of the Sacred Gear...and of us? “I also possess a Sacred Gear in which the strongest Dragon resides in. However, my life was not as amazing as yours, who was a Vampire, or like Kiba’s. I was a normal male high school student. I...to be honest, am scared. While using the Dragon’s powers, I feel that some part of my body is changing into something else. I don’t know much about Devils right now either, or about what a Dragon is. However, I feel like I want to proceed further."* -Issei to Himejima Akeno.
* *"Ah, how do I say it, Akeno-san, you’re a kind Senpai. No, um, I definitely hate Fallen Angels, but I think that Akeno-san is different. Even if you have the blood of Fallen Angels in you, Akeno-san is Akeno-san, and you are the Vice President of the Occult Research Club. I have never once had thoughts of dislike towards Akeno-san. Even after hearing that Akeno-san has the blood of Fallen Angels, I cannot come to hate you. I like you even now, so there’s no problem, right? Huh? What the hell am I saying? Sorry, no more sensitive words are coming to me..."* -Issei to Himejima Akeno.
* *"I’m going to kill you, you bastard....Just as you said, my father is an ordinary office worker who works from morning to evening for our family. My mother is an ordinary housewife who makes delicious food for our family morning, noon and evening. However, they raised me up to this point. To me, they’re the best parents...Kill them? My father and mother? Why should they have to be mixed up in the situation of someone like you and be killed? As if I know anything about things like valuable or destiny!*" -Issei to Vali Lucifer.
* "*Stupidity is fine! If I can't win with ability, I'll excel through stupidity!*" -Issei.
* *"Koneko-chan…though I have a legendary dragon lodged in my body, I can’t do anything…If I had gotten stronger those times with Asia and Buchou, if I had displayed my dragon power, they wouldn't have had such sorrowful experiences…—I’m a talentless and useless devil. Even though all the previous Sekiryuuteis achieved Balance Breaker in a short time…it will take who knows how many months for me. I understood that. I already understood that from the very beginning. Even though I possess the power of the Sekiryuutei, it’s wasted on me. Because I’m useless…I can’t do anything for you, Koneko-chan. I thought I could at least become a shield for you, but…*" -Issei to Toujou Koneko.
* "*Balance Breaker, [Boosted Gear Scale Mail]! It’s been achieved here by poking my master’s breasts!*" -After attaining Balance Breaker.
* *"Don’t make my cute kouhai cry. If you aim at Koneko-chan again, I won’t stop my attack next time. You may be a woman and Koneko-chan’s onee-san, but you’re my enemy!*" -Issei to Toujou Kuroka. -Issei to Toujou Koneko.
* *"I’ll declare this to Koneko-chan too. Even if you run out of control with your nekomata power, I’ll stop you. I want to use this Sekiryuutei power not only for myself, but for my friends too. And even if that scary onee-san comes again, I’ll definitely save you. Since I’ll blow away that nee-chan with a punch, you don’t need to be scared.*" -Issei to Toujou Koneko.
* *"Come, Saji. Come! Sajiiiiiiiiiiiii! You won’t let it end here, right!? You don’t intend to let it end like this, right!? Weren’t you going to do the things that aren’t possible for idiots like us and run swiftly forward!?*" -Issei to Saji Genshirou.
* "*Hey, Saji. Which one of us will advance to being a high-class devil first and have our dreams granted? I—won’t lose! Absolutely. And next time we fight, I’ll win for sure! So, until next time. My rival, Saji Genshirou.*" -Issei to Saji Genshirou.
* "*Don’t make our Asia cry!*" -Issei to Diodora Astaroth.
* "*Don’t ever get near Asia again! The next time you show yourself before us, then that time I really will blow you away!*" -Issei to Diodora Astaroth.
* "*I…..! I……! I made an oath that I won’t let Asia go through sadness again! That’s why I won’t let you do that! I will protect you! Yeah, I will! I will definitely protect Asia!*" -Issei to Asia Argento.
* "*Asia, stay by my side forever. You aren't allowed to leave me again.*" -Issei to Asia Argento.
* "*That's because we have to look if there is an Oppai in front of us!*" -Issei.
* "*I….will become the 'Ultimate Pawn', and I will be alright if I can become a high-class devil. I’m aiming to make my own kind of a harem.*"
* "*……I will just stay like this and hug you! I won’t do ecchi things to you! I….I am lecherous! I really want to have sex with Akeno-san! But I don’t want to make love with you with these kind of feelings!*" -Issei to Himejima Akeno.
* "*-I will stay by your side. I will always stay by your side whenever you feel sad. I will hug you like this anytime. So please. Please cheer up.*" (Volume 7, Life 3)
* "*Buchou, I will become stronger for you and my comrades.*" -Issei to Himejima Akeno.
* "*It seems like my road to becoming a Harem-king is rough, so I have to break every single obstacle on my way. For that, I will have to adapt to the power of the Sekiryuutei and other kinds of power and make them my own. –There are many things I want to make a reality and many things I want to protect. I have to walk right ahead no matter what.*" -Issei to Saji Genshirou.
* "*Due to the things you do, there are those who are crying sadly. No matter what your reasons are, I must blow you away.*" -Issei to Connla.
* "*Sairaorg-san, Vali...and Cao Cao. I won’t lose, and I definitely will become stronger. Much stronger. I believe that, one day, my dreams will come true... Elsha-san, Belzard-san, though we parted in a most ridiculous manner, please continue watching over me from wherever you are. As the Sekiryuutei, as the Oppai Dragon, I will do what I need to do.*" - Issei.
* "Lirenkus, men shouldn’t cry. You have to become strong so that you can protect a girl no matter how many times you fall, and keep on standing up." -Issei to Lirenkus.
* "*…….Asia, Akeno-san, Koneko-chan….I’m scared. I’m actually scared of getting along with girls….. Because it makes me think that the same thing will happen again…..! The girls in our group are being kind to me, but if I tried to take another step and try to get along with everyone, it makes me think everyone will reject me and laugh at me…..! I know that everyone isn’t bad inside my head! All of you are good people! But, I still can’t! The more I tried to understand everyone, the more it makes me stop!……I don’t want to taste…..the same thing again…..*" -Issei to Asia Argento, Himejima Akeno and Toujou Koneko.
* "*I’m Hyoudou Issei. The current Sekiryuutei. I’m also the Chichiryuutei, and the Oppai-Dragon. So I will be fighting while carrying the dreams of many people, huh. I need to take this match with a different feeling to that of the time when I had the Riser-match and Sitri-match. For myself, for Buchou, for my comrades, and for the children supporting me….. Let’s go, Ddraig. There are many things we have to accomplish, but the things we need to accomplish are simple.*"
* "*You take off the bra, then the pants!*" -Issei to Coriana Andrealphus, before defeating her.
* :"*I have no grudge against you. I have no hatred towards you. This is just a game. But I will be taking revenge for my comrades. I’m not mature enough to forgive you when you have taken down my comrades……..!*" -Issei to Sairaorg Bael, before their fight.
* "*Today I will claim victory by defeating you, who becomes serious! We are fighting for our dreams! What can we achieve by not defeating our opponent who is at his best!?*" -Issei to Sairaorg Bael.
* "*Let's go Senpais! I’m a Sekiryuutei! Oppai-Dragon! The man who is in love with Rias Gremory! I am Hyoudou Isseeeeeeeeeeei!*" -Issei to the past Boosted Gear possessors.
* "*Rias Gremory is the woman I love. I want the woman I love to win. I want to protect the woman I love. I want to fight for the woman I love. I……..I! I will defeat you in front of the woman I love and the children who follow me! For my dream! For the children’s dream! For Rias Gremory's dream! Today I will surpass you! I looooooooove Rias Gremory!!*" -Issei to Sairaorg Bael.
* "*……Haa…….Haa……. I also have a dream! To make…….Buchou the……King of the game……. I will……also become a King one day! I will become stronger than anyone! I……! I will become the “Ultimate Pawn”……..!*" -Issei to Sairaorg Bael.
* "*……I……I want to protect Rias…I want to protect Rias for the rest of my life…… I am in love with you! I love you Rias!*" -Issei to Rias Gremory.
* "*I am indeed disappointed, but we have learnt a lot in this game. In my view, phrases like ‘there’s no meaning in losing’ or ‘there’s nothing to be gained in losing’, are not true okay? Listen up, Bova, Nakiri. Self-attribution is what makes the people who are defeated more powerful. Because — in order to erase any regrets, you must obtain victory.*" -Issei to Nakiri Ouryuu and Bova Tannin.
* "*I'll never forgive anyone who makes our president cry!*"
* "*No way, no way in hell. I’ve invested my entire aptitude in magic for this. Would you have me develop a technique that allows me to see through women’s clothing instead? I made such a choice bearing my thoughts, worries and all. I shall...I shall destroy more women’s clothes and then...and then...and then someday, as I gain the ability to destroy them just by looking, I shall continue my fight!*" -Issei to Shidou Irina.
* "*Lechery is my strength! Lechery is my justice!*" -Issei to Shidou Irina.
* *"Boobs are heavier than someone's life."* -Issei to Matsuda and Motohama in school.
* *“I’m not fighting because I want to win, I’m fighting because I have to win.” -* Issei to Hachiman.
* *"Are you any different!? You sacrificed yourself to save me that time!! At that time, were you thinking about complicated stuff like "this is my Red Dragon Emperors duty"!? That's not what sacrificing yourself is!! At the very least, I'm different!! I haven't accepted any commitment. If things get bad, I might run away, since I'm not a good enough person to be able to sacrifice my life for total strangers. But, unfortunately, I'm also not trash that can live happily without paying back his debts!"* - Issei to Nyx.
* *“If a miracle only happens once, then what is it called the second time?”*- Issei to Thanatos.
* "*I'm not superman, so I can't say anything big like I'll protect everyone on earth. I'm not a modest guy who will say it's enough if I can protect as many people as my two hands can handle either. I want to protect a earth of people.*" - Issei to Cao Cao.
* *“The difference in ability.. What about it? Do you think I should give up just because you’re stronger than me?”* - Issei to Erebus.
* *"'Our pride', you said? So that pride you're saying to be so precious, is that connected to sealing Nyx? Is it? Then I should stomp on it as you said. 'Cause that's why I obtained this God Form!"* - Issei to Erebus.
* *"Damn that Tartarus! He really went all out chasing me down. That was scary as hell. His Divine Power was terrifying. To think that I actually defeated someone like that. I don't even believe it myself."* - Issei about Tartarus.
* *“I’m not fighting because I want to win, I’m fighting because I have to win.” -* Issei to Hachiman.
* *"You aren't the only one...who wants to win, you know..."* - Issei to Hachiman.
	+ *"...Huh?"* - Hachiman.
		- *"You said it yourself that I'll...be your first target. It's the same for me!"* - Issei to Hachiman.
			* *"Tch!!!"* - Hachiman attacks Issei.
				+ *"Just like you, I came to Takamagahara to fight with her. I came here to defeat you, Hachiman".* - Issei to Hachiman.
					- *"I will defeat you!, I will defeat Ayaka!!, I will defeat Ameno!!!. And then I'll take Nyx!, Lucina!, Saji!, Cao Cao!, Yukine... I'lle being them all back!!!"* - Issei to Hachiman.
						* *"You're Just one person... I cannot be beaten by her!!!, Hachiman.* - Issei to Hachiman her defeats.
* *"'Stands a chance'? It's not like I exactly stood a chance against any of my other enemies, either. I just defeated them because I had to. That's all. You think I care if you're on a different level from the rest of the Amatsukami? It's the same deal. If you're an enemy I have to defeat, I will. That's all."* - Issei to Izanami.
* *"I'm not saying I don't remember your blade. I'm saying I don't remember your heart. When you cross blades, you can tell a little of what your opponent's thinking. I'm not saying you can read their mind or anything like that, but you can tell what kind of resolve lies behind their blade, whether they respect you or look down on you. That kind of thing, you can tell. When I'm actually fighting, there's no time to think about it, so I don't usually realize until afterwards, but in general, the stronger the opponent is, the more of that "heart" seems to come across."* - Issei to Erebus.
* "*What good is a future bought with the lives of that many innocent people? Don't be stupid! You can't exchange hope for leaving your sister like that! Instead, you will make her despair!"* - Issei clashes ideals with Ameno.
* *“You know why big brothers are born first? To protect the little ones that come after them.”* - Issei to Amenominakanushi.
* *“You wanted revenge? You’re just making other people s miserable as you. Revenge is just the path you took to escape your suffering.”* - Issei to Yukine.
* *“Whatever she is, it doesn’t change the fact that she’s here now. She still experiences anger, happiness and pain.”* - Issei to Yukine.
* *"The difference in strength...what about it? Do you think I should give up just because you're stronger than me? I've always known you were strong. Nothing I see now will change my mind. I will defeat you, Satan."* - Issei to Satan.
* *"Right now, I need more power! Vali...and the rest are still fighting. I can't just leave everything to them! Whether it's enough or not...can't be known. Right now...all I can do...is think about what I can do, right now!"* - Issei's explanation to Great Red while struggling to obtain Dream Powers.
* *"The one who sliced off your left arm and leg...was that me, as well? If so, then slice off my left arm and leg. The one who was fighting against you just now was a Yaldabaoth form acting whilst I was unconscious. That wasn't me. If we're going to settle this, then it's not fair unless I'm in the same condition as you to begin with!"* - Issei to Satan.
* *"Looking back on it, that was when the gears were just starting to turn. But, we didn't realize anything at all. We didn't know that our fates were already written in stone. We just wanted the power to reach our dreams. We thought that help shape us. That's what we all believed. In the endless war that was yet to come. We would discover that for ourselves."* - Issei looking back on his actions and looking back at all of his friends and rivals.
* "*It doesn't matter who's on my side! I'm still protecting the same people! Even if I completely change in the end!*" - Issei talking to Nyarlathotep.
* *"Yaldabaoth and Ubbo-Sathla, I won't ask you to 'lend me your power' any more. And I won't tell you 'don't get in my way'. I won't even say 'let us fight together'. I'll fight for myself. Thank you, Yaldabaoth and Ubbo-Sathla. You are me."* - Issei to Yaldabaoth and Ubbo-Sathla.
* *“If you give me wings, I will soar for you even if this whole land sinks down to the water. If you give me a sword, I will fight for you even if this whole sky shoots through with your light.”* - Issei to Akashi Kyoya.
* *“Because he attained so much power, he could only be controlled by it. And in the end, maybe his only option was to destroy himself.”* - Issei about Akashi Kyoya.

## Gallery

*Hyoudou Issei**Normal Form**Hyoudou Issei wielding the Boosted Gear**Boosted Gear Scale Mail full frontal appearance**Juggeranut Drive**Cardinal Crimson Promotion**Diabolos Dragon God**Apocalypse AnswerArms**God Form**Dragon God Form**Blaze Overdrive Form**Chaotic Annihilation Form**Demonical Darkness Form**Diabolous Dragon Form**True Holyness and Darkness Form**True Chaos Form**True Outer God Form**True Draconic Form**Supreme God Form**Ise**Issei**A young Hyoudou Leiko defeats Issei during their first bout**Issei first time seeing the Boosted Gear**Issei magical powers**Issei summoning the Boosted Gear**Issei stopped Rias' engagement party**Issei is about to fight**Issei is about to fight Riser Phenex**Issei in shock**Issei and Ddraig**Issei and Rias Gremory with Asia Argento**Saji Genshirou explaining social cues to Issei**Ascalon inside of the Boosted Gear**Issei chases after Vali Lucifer**Hyoudou Issei (Sekiryuutei) vs. Vali Lucifer (Hakuryuukou)**Issei Xenovia and Asia enjoying the hospitality at the Gremory household**A Small Glimpse in Issei's Training with Tannin**Issei's BB Countdown**Issei stops a punch before Kuroka**Koneko's regular life force restoring sessions**Issei promotes to Queen**Issei using Dress Break on Diodara's Peerage**Issei deflects all of Diodora Astaroth's demonic power attacks**Issei in his Juggernaut Drive uses Longinus Smasher against Shalba Beelzebub**My Enemy, My Rival... My Friend**Asia Argento advances in her relationship with a kiss**Issei and Saji Genshirou using promotion**Boosted Gear - Scale Mail**Issei punches Fenrir's child**Weary Issei wielding Mjölnir**Issei and Himejima Akeno eating Crepe**Issei with Rias Gremory and Grayfia Mammon**Issei and Sairaorg Bael Bumping Fists**Issei using Pailingual on female members of the Hero Faction**Issei and Elsha**Issei talking with Serafall Leviathan**Issei use Dress Break on Rossweisse**Rossweisse wearing Issei's Clothes**Issei use Flame Blaze**Issei vs Cao Cao clash**Issei cutting Cao Cao’s arm**The 3 Forms of Illegal Move Triana**Issei Dancing to Oppai Dragon Theme**Issei and Rias Gremory at the Oppai Dragon Show**Issei Teaching Gasper Vladi How to be a Man**Issei and Sairaorg Bael with Rias Gremory**Dragon Blaster**Issei fighting against Sairaorg Bael, a master martial artist**Issei and Rias Gremory final kiss**Shidou Irina about to kiss Issei**Xenovia Quarta kisses Issei for Good Luck**Beast x Prince**Issei makes sure Kiba Yuuto doesn't die**Issei fights Dulio Gesualdo head on**Mariah in nurse outfit who fell in Issei's arm**Issei and Ddraig fight against Tartarus**Issei and Erebus meeting each other in Tartarus's castle**Issei lost by Erebus**Cosmos Phoenix prepares to attack Issei again**Issei moves to the top of the execution scaffold after Cosmos Phoenix is destroyed**Issei carries Nyx under his arm after freeing her**Issei hurls a screaming Nyx at Thanatos**Issei reunites with Nyx**Issei argues with Nyx over his rescue attempt**Issei and Erebus battle concludes**Issei and Rossweisse**Bishamonten attacks Issei from behind**Issei takes on Bishamonten's attack**Issei attacks Bishamonten**Issei vs Amenominakanushi**Issei chasing with Merkabah**Issei defeats Merkabah**Issei attacks Azathoth**Issei defeat Azathoth**Issei unlocking Great Red's Powers**Issei appearance during the war**Issei seen using After Images for the first time**Issei vs Akashi Kyoya**Azathoth and Issei posing*

## Trivia

* Issei's birthday is on April 16.
* Issei's name means "Sincere/Honest".
	+ His surname means "Soldier" in reference to him being a Pawn, as pawns are considered to be foot soldiers in chess analogy. So his full name means "Sincere or honest soldier".
* Issei shares the meaning of the series' title that refers to Great Red: "Dragon of Dragons" as he can be considered a mini Great Red, who the title mainly refers to.
	+ In addition, he along with Vali have made another meaning for the title that refers to themselves: "Diabolos (Devil) Dragon".

* Despite not officially being a member of the Gremory clan yet, he is already considered one by the members (minus Rias) and their servants. After proposing to Rias, she also considers him a member as her future husband and fiance.
* After his visit to the Underworld and meeting the Gremory family, it is noted that Issei acquired gentlemanly behaviour as well as knowledge about the Gremory clan's history and general knowledge about the Underworld, due to the fact that Rias chose Issei as her lover and future husband, thus requiring him to obtain noble etiquette to serve as Rias' husband.
	+ Due to the teaching he received from the hired Gremory instructor as well as Venelana Gremory, Issei became skilled at dancing, table manners and very knowledgeable about the Gremory clan's history and general knowledge about the Underworld.

* Issei is engaged to Rias Gremory, Himejima Akeno, Xenovia Quarta, Shidou Irina, Asia Argento, Toujou Koneko, Toujou Kuroka and Rossweisse.
* His first kiss was with his childhood friend Shidou Irina, albeit he was asleep.
* In Rating Game fighting-types, Issei is considered a Power-type while also being a good Support-type due to his Boosted Gear Gift ability.
* According to the Nilrem Magicians, Issei's strength is ranked in SS-Class.
* Issei's life force is currently unreadable due to his body being made from Great Red's flesh and Ophis' powers. At its lowest which is zero, it represents "dream" or Great Red and at its highest which is infinite, it represents "infinity" or Ophis.
* According to Ophis' spawn Lilitu, Issei smells like her, Ophis, and Great Red.
* According to Elmenhilde, Issei's blood tastes sweet, mellow, and rich, and is absolutely addictive.
* Issei is very popular in Norse mythology as many people in Valhalla were cheering for him.
* His favorite food is cheesecake.
* Issei is considered one of the characters with most rivals in the stories, For example (Vali Lucifer, Saji Genshirou, Kiba Yuuto, Cao Cao, Sairaorg Bael, Cohen Alastor, Riser Phenex, Thanatos, Kanon, Alysha, Hachiman and Akashi Kyoya) which is the most in all male characters.
* Issei is the only person outside of the members of the Slash/Dog Team that is allowed to read Vali Lucifer's *Black History Diaries*.
* Issei has a *tokusatsu* show in the Underworld called *Breast Dragon Emperor Oppai Dragon* (, *Chichiryūtei Oppai Doragon*), which stars him as the main character named **Issei Gremory** and it is considerably popular among the children.
* Issei makes review videos for Oppai Dragon products while acting as the "Oppai Dragon" himself and uploads them to DeviTube. This caused the merchandises' sales to increase.
* It would seem his erotic nature is hereditary, as his father, grandfather, mother and grandmother all have a erotic nature too, with his father and grandfather also seeking to create a harem when they were younger and his mother teaching Asia about the naked apron while his grandmother teased Issei and Asia about the two of them having sex together and creating a child.
* According to Kiryuu, Issei is well endowed, as she believes that he can satisfy both Asia and Rias with his size.
* Issei has a secret stash of his porn collection that he kept perfectly hidden within household goods inside the closet located in an unused room, he was surprised to hear that some of the girls not only found it but also have been watching them.
	+ According to Motohama, Issei's favorite eroges are ones that focus on princesses and girls from socially high class families. Issei speculates that his taste must be influenced due to his feelings for Rias.
* Issei has broken off all the engagements of the female characters placed into one, (Rias, Kiyome, and Rossweisse) all of which have fallen in love with him as a result.
* Issei is shown to be a talented sculptor as he was able to create a perfect clay replica of Rias.
* Issei is good at sewing, as he was able to sew together headbands for the entire Occult Research Club in preparation for the dodgeball tournament.
* Issei has a strange reaction to alcohol, as he becomes more serious and shy when drunk.
* Issei is very good at giving massages, so much so that it's too erotic for women.
* Issei is the only man in existence to have seen Gabriel in a bikini, as well as the most beautiful women in all of Heaven who serves under her; in an old school swimsuit, transparent negligee, and athletic clothing.
	+ He is also the second man to see Sona Sitri in a swimsuit aside from Saji Genshirou.
* Issei's first-ever meeting with Asia may have been foreshadowing to the relationship between Cleria Belial and Yaegaki Masaomi, as at first, Issei and Asia similarly to Cleria and Masaomi, were forbidden from seeing each other in the same town; Kuoh Town due to the Devil's side and Angel's side still at feuds with each other.
* Issei is being supported by the New Satan Lucifer faction due to the fact that he is Sirzechs Lucifer's future brother-in-law, as they hope to boost his political influence and bring him inot their faction.
* After the defeat of the Hidden Khaos Brigade, Issei is considered as a potential candidate for the new Satans.
	+ Sirzechs wants to create a new seat for Issei under the title ***Satan,*** as in the Revelation of Apocalypse, it is recorded that the terms of Satan and dragon were synonymous, which suits Issei as he possesses the flesh of Great Red who appears in the Apocalypse. Sirzechs also wants to bestow his title of *Crimson Satan* to Issei.
* Issei is one of the protagonists of the erotic doujinshi called "*Prince x Beast*" alongside Kiba Yuuto, that the Kuoh Academy Manga Club produces, as it is based on the misunderstanding that the female students have about Issei's and Yuuto's relationship, with the manga being popular among the female students of the academy.
* Issei is a fan of Dragon Ball (Drag-so Ball in the Anime and Manga).
	+ He sometimes likes to create Gundam plastic models when he has personal free time.
* Issei is shown to have liked fishing when he was younger but gave up on it after he destroyed his father's favorite fishing rod. However, he regained his passion for fishing later on.
* Issei has loved robots and space battleships since he was a child.
	+ This could explain why he was most interested in Magnus Rose and Unknown Dictator out of the new rookies in the Azazel Cup.
* Issei's appearance is based on Kazuma Torisuna from **s-CRY-ed** because the author is a fan of the series.
* In the Light Novel, Issei's Dragon arm is depicted as a scaly Dragon arm that covers his entire left arm, while in the anime, his Dragon arm is replaced by the Boosted Gear.
	+ The manga depicts Issei's Dragon arm as a combination of both.
* Supposedly, one of Issei's power-ups was to involve sucking Rias' breasts. Unfortunately, that was already too much for Fujimi Shobo, so the author resorted to something else.
* In the anime, Issei shows symptoms of PTSD and trust issues thanks to Raynare.
* In the short story "25 (Twenty Five) at the Clubroom with Rias-buchou!", Issei was stated to have black hair; however, the anime and light novel illustrations portray him as having brown hair.
* Issei was originally envisioned with Kiba's character traits but later changed into a pervert because Ishibumi felt those character types were too "weak" for the main character.
* Issei's role as a protagonist is similar to Ichigo Kurosaki, Eren Yeager and Kouta Kazuraba.
* Issei was originally going to be just a human who helps Asia Argento.
* Issei would become a fireman if he had an alternative job.
* Issei hates the cold.
* In the English dub, Issei’s nickname Oppai Dragon is Grabbin Dragon.
* His seiyū, Yūki Kaji, eventually married Ayana Taketatsu, the seiyū of Koneko, on June 22, 2019.
* Issei's is included among the developing list of the **Top 50 Strongest Beings of Draconic Deus**.
	+ For now, he is ranked as the 2nd Strongest Being.
* Issei is Mrelite71's favourite protagonist.