Issei Hyoudou

> If that’s what it takes, I’ll do it. For the sake of peace, I’ll be a God or a Devil.
>
> Issei’s promise to Indra, Volume 19, New Life

Nicknames = Ise
 Partner (Ddraig)
Darling (Irina/Akeno)
Husband (Akeno)
 Red Dragon Emperor (w/ Ddraig)
 Welsh Dragon (w/ Ddraig)
 The Strongest Red Emperor Dragon in History (Thanatos)
 The Most Dangerous Red Dragon Emperor (Cao Cao)
 Satan (Rizevim)
 Crimson Heavenly Dragon
 Crimson Dragon Emperor (Sirzechs)
 The Demonic Dragon Who Manifested the Power of Infinity and Dreams (Tartarus)
 Red Dragon Emperor of the Blazing Truth (Hades/Nyx)
 Red Dragon (w/ Ddraig)
 Hero of the Underworld (Underworld Residents/Arthur)
 Hope of the Underworld (Sirzechs)
 Lover of the Heiress of the House of Gremory (Underworld Residents/Grayfia)
 Breast Dragon Emperor (w/ Ddraig)
 Red Dragon Satan
 Supreme Devil King
 Demonic God of Destruction (shared with Vali)
 True Red Dragon God Emperor

Equipment = Boosted Gear
Ascalon
 Ascalon II
Ascalon II Prototype
 Satanic Fury
 Promotion (Formerly)
Dragon Shot
 Flame Blaze
 Crimson Wrath
 Maelstrom
 Ryuuteimaru
 Dragonization
 Dress Break
 Pailingual
Nyuutron Beam Cannon

Relatives = Juzo Hyoudou (Grandfather) †
 Unnamed Grandmother †
 Unnamed Grand-Uncles
 Gorou Hyoudou (Father) †
 Miki Hyoudou (Mother) †
 Two Unborn Older Siblings †
 Rias Gremory (Wife)
Akeno Himejima (Wife)
Xenovia Quarta (Wife)
Irina Shidou (Wife)
 Asia Argento (Wife)
 Koneko Toujou (Wife)
 Kuroka Hyoudou (Wife)
 Rossweisse Hyoudou (Wife)
 Ravel Beelzebub (Wife)
 Le Fay Pendragon (Wife)
 Ingvlid Leviathan (Wife)
 Elmenhilde Karnstein (Wife)
 Roygun Belphegor (Wife)
 Yasaka (Wife)
 Kory (Wife)
 Bennia Orcus (Wife)
 Lint Sellzen (Wife)
 Kunou (Wife)
 Verrine (Wife)
 Seekvaira Agares (Wife)

Affiliations = Hyoudou Family
 Hyoudou Residence
Kuoh Academy (Graduated)
Occult Research Club (Formerly)
Rias Gremory's Peerage (Formerly)
Gremory Clan (Member)
Hyoudou Clan (Head: Formerly)
ExE (Executive: Former/Occasional Field Agent)
Issei Hyoudou's Peerage (King)
 Team Red Dragon Emperor of the Blazing Truth (Leader)
 D×D
 Three Factions (Underworld) (The Seven Satans)
 Kuoh Town
 Ravel Phenex (Former Manager)
Le Fay Pendragon (Contracted Magician)
 Tiamat (Obligee) (Formerly)
 Azazel (Former Mentor)
 Basara Toujou (Apprentice)
 Issei Hyoudou Company (President)

Status = Alive

Ranking = Special-Class Devil

Super Devil

Satan

Pawn (8 Pieces, later 8 Mutation Pieces) (Formerely)

True King (Independent)

**Issei Hyoudou** is the main male protagonist of *High School DxD*. He is 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 is the former Pawn of Rias Gremory's Peerage and a member of the Occult Research Club. After the Evil Dragon War, he was promoted to the rank of a High-Class Devil, becoming the King of his own independent peerage.

After traveling to Earth-0 and undergoing extensive training, he unlinked from the Gremory peerage and became a True King and eventually, the Devil King

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.

## Appearance

Issei is a high school student of average height with short spiky brown hair, with two short locks of hair behind his head, and light brown eyes. He later grows hair out and now has a small shoulder-length ponytail. Following his training with Tannin, he gained a more muscular and toned build.

While he has worn various outfits throughout the series, his most commonly worn outfit is a black leather jacket with a maroon shirt, matching pants and biker boots, the latter of which was gifted to him by Vali for his first wedding.

His "Wyvern" costume resembled the Batman suit but with a dark crimson red pallet, green Wyvern insignia on the chest, dragon winged shaped cape, red gloves and bladed gauntlets. The new outfit he wears for Rating Games is a variant of this with the body suit being black, removed cape, insignia, gloves and gaunlets with a dark crimson coat in place.

His Satan outfit consists of a black kosode, red kimono top, dark pants and boots, shoulder pauldrons similar to Sirzechs with red coloring, green dragon insignias marked on them and a breastplate that appears similar to his Scale Mail with a green orb in the middle.

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.).

He later grew to 180.34 cm (5 feet 11 inches)

## Personality after Earth 0

Issei retains much of the characteristics of his canon counterpart but with significant changes; He now displays a more levelheaded, analytical approach to things, only acting recklessly in certain situations. He displays more confidence in himself than before but does not overestimate himself nor underestimate his enemies. In addition, he does not become as easily flustered as before, teasing and flirting with the girls as much as they tease and flirt with him. He is has also become somewhat sensual, sometimes attempting to initiate sex with the girls rather than wait for their advances; Issei rarely, if ever, turns down sex and states he is "almost always in the mood". His lust is increased when in the presence of Xenovia, Akeno or Kuroka as they encourage his perversion.

As noted by Black Canary, Issei is just as dependent on the women in his life as they are on him. Whenever he believes the girls do not want him or love him anymore, he sinks into a depressed state and his self-esteem drops significantly, as showcased during their 3-week separation on Earth-0. Afterwards, he realized how important they are to him and began dividing his attention among them equally to the best of his abilites. He's also showcased a more open-minded attitude to his relationships with them, agreeing with them on their plan to branch out to find male lovers of their own and even build reverse harems.

After his encounters with the Joker and becoming a father, Issei made a promise to Indra that he'd resort to morally dubious means for the sake of maintaining peace. He is willing to threaten, manipulate and even kill if the individual shows no signs of changing themselves, adopting a "talk then kill" philosophy. He takes no enjoyment in such actions as he believes they are for the sake of peace rather than personal reasons; Lady Phenex states that he’s adopted some of her daughters ideas of supremacy in his later years.

Due to this, he is not above keeping secrets from his loved ones if he believes he is doing it to protect them, such as keeping Dr Doom’s attack on his castle secret for a year and a half, only revealing it to them thanks to encouragement from Chichigami.

## 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. When the newborn was finally born he was named Issei, meaning "honesty", for his father's honest prayers.

He is a childhood friend of Irina Shidou 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's stories about breasts, which eventually led to Issei's fascination with them and his perverted tendencies.

He attended the same middle school with Matsuda and Motohama 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 & Abilities

**Demonic Power:** Issei has all the powers common to Devils, but his was lower than children, leaving him unable to travel using magic circles. It can be enhanced through promotion to Bishop or Queen. However, his training with Tannin afforded him sufficient demonic power to do so. Due to continously training his demonic power and his accumulated experience in intensively using it in combat. Issei's overall base demonic power has increased to the point being at a level of a High-Class Devil, while in his Crimson Armor his power is Satan-Class, and in his Diabolos Dragon God form, it was stated to be Transcendental-Class. After several months of rigorous training on Earth 0, his overall demonic power in base increased to be at the level of a Satan Class-Devil, while his **Crimson Armor** has increased it to be Transcendental Class and his **Diabolos Dragon Form** increases it to be equal to Shiva.

* **Dragon Shot** (*Doragon Shotto*): One of Issei's signature moves, where he releases a beam of concentrated demonic power. It is often used in tandem with Boosted Gear to increase its destructive potential, once destroying a mountain. He developed a small scale version meant to knock out humans and lessen the damage done. Sirzechs' Power of Destruction inspired him to redirect his Dragon Shots, thus controlling their path, which he used against Cao Cao, and the Jabberwocky.

* **Dress Break** (*Doresu Bureiku*): Issei's second signature move, which he mainly uses against women. As its name suggests, this move allows him to "strip" woman by first coming into 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, which allows him to "talk" to women's breasts after creating a "space". As such, it is a useful move as it allows him to learn his opponents' plans by asking their breasts, however, complaints from females from other peerages caused Rias to ban it in Rating Games. A drawback is that if a woman strips in front of him and informs him about her plans hinders Pailingual. In his D×D Form, it is powerful enough to cover an entire island and combined with **Penetrate**, it can talk to a powerful being's breasts.
	+ **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**: Due to Tannin's training, Issei learned to breathe flames using Boosted Gear. First, he inhales, filling his lungs with air and produce a small flame in his stomach, then uses **Boost** and **Transfer** to enhance it, then breathes massive flames from his mouth. He can widen his dragon flame to the point that it can engulf the whole sky as shown in his battle against Cao
	+ - **Draconic Fire Fist: Jet Kindling**: Issei conncentrates Flame Blaze into his arm and delivers a fire enchanced punch.
* **Crimson Wrath**: Through his Demonic or Draconic energy, Issei summons multiple magic circles of red lighting that rain down from above, creating a small lightning storm. At it’s strongest, it is capable of destroying a section of a Rating Game Area and deal damage to Xenovia Quarta, a Super Devil.
* **Maelstrom**: Issei creates a giant water pillar that fires several high speed water drills at the enemy. He is capable of summoning one or multiple and can make them disappear and reappear in a moments notice, making it difficult to evade them.
* **Nyuutron Beam Cannon**: 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" along with strengthening from Shaka (Gautama Buddha), he could launch an enormous pink blast comparable to Infinity Blaster, defeating the Strongest Grim Reaper, Thanatos.
* **Summoning:** Issei can summon his familiar, Ryuuteimaru.

**Dragon Aura:** Due to possessing Boosted Gear, then having his left arm turned into a dragon, Issei has a small amount of dragon aura. Training with Tannin increased it, to the point of dealing minimal damage, while using Boosted Gear. After gaining a new body, made from a combination of Great Red's flesh and Ophis' power, it became more natural, described as being dominant. The strength of it was increased further after mastering Great Red’s power, to the point where partially releasing causes others to freeze in fear.

**Immense Strength:** At first, he was weaker than devil children, but training in the mountains and powered up using Boosted Gear lets him rival High-Class Devils, able to combat Riser's servants. Tannin's training made it possible for him to erase a mountain after donning Scale Mail; outclassing Diodora empowered from Ophis' snake. Having awoken Triaina, and Crimson Armor, Azazel stated no one among the Young Devils aside from Sairaorg can fight him, equaling an Ultimate-Class Devil. From Sun Wukong's training, then upon awakening Diabolos Dragon, he overpowered Rizevim, then managed to defeat Apophis. Issei grew strong enough to the point that Baraqiel couldn't defeat him without it, then fight against Dulio and Thanatos, the strongest among their particular groups, defeating the latter. Drinking Amrita, in Pseudo D×D God, he fought and bested Vidar, donned in his dragon armor. Ddraig noted the Crimson Armor reaches Satan-Class, while Pseudo D×D God reaches Super Devils, defeating Rias using Balor Princess. He defeated Erebus, deflecting a blast that could have defeated 100 devils, then Tartarus, while using A×A, which could destroy the world.He overpowers Angra Mainyu by using True D×D, then Hades after teaming up Vali and Team D×D, now being recognized as a Super Devil. After training on Earth 0, defeating the Evie's and gaining FxF, Issei is now recognized as the strongest being in Draconic Deus, alongside Vali.

**Immense Durability:** At first, weak and vulnerable to strong attacks, but endured being pierced from light-based weapons, albeit needed to be healed afterward. From promoting into either Rook or Queen, his defenses can be increased through their traits. After Tannin's training, where he was forced to survive continuous assault from the former Dragon King, Issei's damage resistance allowed him to withstand continuing to use Boosted Gear, which he couldn't do for more than a couple minutes. His defenses is most aided from Promotion and different armors, all of which allowed him to withstand facing opponents, such as Sairaorg, Cao Cao, Grendel, and several others, as without it Issei couldn't last long. Issei can endure Baraqiel's Holy Lightning and continuing to fight despite the intense pain. Issei can withstand Vidar's attacks even when he is wearing his Ragnarök Earth Berserk armor and even his *Fimbulvetr Shot*, the impact of which sent Issei crashing onto artificial Yggdrasil. He has even managed to survive sparring matches with Raven and Superboy.

* **Flame Resistance:** Because of his 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.

**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 his DxD 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 Yuuto Kiba, who is famous for his exceptional speed, until Kiba revealed his Drag Knight Boosters. He even managed to keep with Xenovia, his Knight and Super Devil, in their rating game match.

**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 Volume 23, he was able to keep fighting at his best throughout the whole two-hour Rampage Ball Rating Game. His bedroom stamina is stated to be extremely high, to the point where he can have sex with 18 women all the way to completion before collapsing to exhaustion.

**Dragonization** (龍化, *Ryū-ka*): Having sacrificed his left arm to Ddraig, it transformed into a dragon's arm, becoming immune to blessed items. In becoming a Humanoid Dragon, having his new body made from Great Red's flesh, Issei can now transform any part of himself into a dragon, fighting against three Magicians and broke their defensive magic using one punch; and can grow dragon wings on his back for flight. However, once the transformation happens, he needs the dragon power to be drained to appear human from the transformed section by Rias or Akeno.

**Master Hand-to-Hand Combatant:** More than a martial artist, Issei is a brawler, most notably improved from his training with Kiba and Koneko. Combined with Boosted Gear, he could hold his own against Riser's three Pawns and Rook. Prior, his tactics involved head-on clashed, proving, barely effective against Riser and Vali; however, Tannin's intense training, honed his combat skills, letting Issei face far stronger enemies, through donning Scale Mail; cornering Kuroka, then overpowered a snake-enhanced Diodora, and handled fighting Loki. Usual training, then donning Triaina and Crimson Armor allowed him to go toe-to-toe with Sairaorg, an extremely powerful Devil and master martial artist in a fistfight, while he'd donned the Lion's Armor. He improved most from Sun Wukong's training, to where he fought Rizevim, a Super Devil, activating DxD. He fought Baraqiel with Crimson Armor, who infused his strikes with Holy Lightning. In Pseudo-DxD, enhanced from Amrtia, lets him fight Vidar, who excels in a kick-based martial art, enhanced through Ragnarök Earth Berserk. His experience and combat skill allows him to overpower Gressil, until he started using Resistance to make him more resilient to attacks... He now displays further refinement with his techniques, integrating grapples, take downs, leg locks into his style to gain an advantage.

**Expert Swordsman:** Though Issei isn't as skilled as Kiba, Xenovia or Irina in swordsmanship, he has learned the basics from Kiba, which has continuously been improved from regular training sessions. As such, he can wield Ascalon as an arm blade extension of his Boosted Gear allow him to cut off Cao Cao's arm during their first fight in Kyoto. Issei could deflect strikes from the strongest Grim Reaper 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*. Issei could fiercely clash with Kiba's superior swordsmanship with Gram, blocking its strikes with 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. Later on, his skills grew to where he could match Damien Wayne in a sword fight and keep up with his brother-in-law Arthur during sparring.

**Expert Tactician:** Though outsmarted and considered an idiot, Issei has basic tactical knowledge, focused on surprising opponents. He carried holy water and a cross to counter Riser's Immortality, then overcharged Vali's wings after transferring power to them, breaking his armor using Ascalon. Issei acted as the Kyoto Team's leader, letting them face the Hero Faction. Kiba mentioned despite being simple, his orders let their group properly fight and defend themselves. He could also plan ahead of time, using a bullet with Samael's blood to defeat Cao Cao, who had Medusa's Eye, making him vulnerable to it. Issei used Dividing Wyvern Faeries to in a unique manner to combat Euclid, who'd outmatched him in Crimson Armor. Against Kiba, he transferred power to him, thus making him lose control of his armored boosters, then taking advantage of the fact Rias wasn't familiar with his Nyuutron Beam Cannon, surprising and defeating her. Issei tactical abilities increased thank's to Batman's teachings, capable of using deception to gain the advantage, pressuring his enemy when at their weakest, applying a more practical mindset to battle. After returning home, He began taking the lead as his team's strategist during Rating Game matches, with Ravel serving as his advisor.

**Expert Politician**: As the current Satan and Devil King, Issei is an experienced and capable politician. He, along with his colleagues, have managed to improve the Underworld. He is respected by practically every faction, even Lord Bael and The Great King Faction to an extent. Despite his preference for peaceful negotiations, he is willing to use force if necessary.

**Expert Magician:** Despite having little skill in magic at first and not near the level of Rossweisse or Le Fay, Issei has grown into a powerful magician and spell caster, even creating spells of his own called Crimson Wrath and Heavenly Restriction. He shows mastery in elemental magic, particularly fire, lightning and water to some extent. He has displayed the use of illusions, cloth and defensive spells. Under Rossweisse's and Le Fay's tutelage, he became proficient in sealing magic, using it hold back The Enchantresses' shadow constructs, black magic for countering projectiles of Light and techno magic, albeit at a basic level.

**Dream Manipulation:** Issei, after mastering Great Red's power, became capable of creating and manipulating the dreams of others. Within their mindscape, he has complete control and can make them see whatever he wants them to see, be it to torture or pleasure them, as demonstrated when he implanted images in Mongul's mind of Issei having sex with his peerage. Initially, the subject had to be asleep or unconscious for his powers to work but eventually got it to a point where he can do it to them while there awake and through eye contact.

* **Astral Projection**: After training with Madeline Pryor, he gained the ability to separate his consciousness from his body and used it to travel to Limbo and dimensions that are out of reach by conventional means. He, along with Rias, Asia and the Quarta Peerage, used it to enter Xenovia’s fractured mind to save her.

**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, which was further enhanced due to his training under Batman

**Master Artisan:** Issei is a very talented sculptor, able to create a perfect statue of Rias Gremory with his eyes closed from memory which impressed his teacher and his friends in classroom.

**Skilled Dancer:** Due to being taught by Venelana Gremory, Issei became skilled in social dancing, able to coordinate with Rias in dancing well enough to pass the dancing trial in the ruins of connection

**Skilled Chef**: Due to Alfred Pennyworth’s brutal training, Issei managed to become a capable chef, able to cook breakfast meals for his wives and kids whenever possible. He also assists his wives with making dinner

**Flight:** Issei, being a Dragon/Devil, has two methods of flight; He is capable of using his Dragon wings or Devil wings, with the former located on his upper back and the latter located on his lower back. He is even capable of using both simultaneously or fusing the two together.

## Equipment

**Boosted Gear** (*Būsuteddo Gia*): Issei's Sacred Gear and main weapon, among all the original 13 Longinus, which holds the Welsh Dragon, Ddraig's soul, making it a Mid-Tier Longinus. A left-handed red gauntlet that doubles his powers every 10 seconds until he reach his limit, letting him rival High-Class Devils, holding the potential to kill god if mastered. He later gained the ability to **Transfer** the multiplied power into a person or item, even parts like his eyes for enhanced vision. Issei later awakened **Penetrate**, letting him bypass all defenses like Rizevim's Sacred Gear Canceler, letting his attacks make contact; transferred into his eyes lets him see through anything, even woman's clothing.

* **Boosted Gear: Scale Mail** (*Būsuteddo Gia: Sukeiru Meiru*): Boosted Gear's Balance Breaker creates a red dragon armor, which became his main combat form. Issei activated an imprefect version twice; the first time via a sacrifice lasting 10 sec; then again using a bracelet from Azazel, lasting 15 min. He achieved a perfected one from Tannin's training, but reached it from poking Rias' breasts to trigger it. In Scale Mail, Issei is strengthened to the point of erasing a mountain and Kuroka's spatial barrier using a basic blast; and can use **Boost** without the limiter. At first, he could use his boosters for enhanced speed and temp. flight; then gained retractable wings after using Juggernaut Drive, as well as its using the Pteranodon-like claws as arms.

* **Dividing Gear** (*Dibaidingu Gia*): The Boosted Gear version of Divine Dividing, caused from Issei installing one of its jewels into the right gauntlet during the initial battle against Vali. A white gauntlet, different from the red, granting him Albion's division and absorption powers. It, however, reduces Issei's lifespan, because of the Heavenly Dragons' contradicting natures and was banned by Azazel. However, after Ddraig and Albion reconciled with one another, thus gaining access to the **Dividing Wyvern Faries**, Dividing Gear became unusable.

* **Juggernaut Drive** (*Jagānōto Doraivu*): A form unique to Boosted Gear and Divine Dividing, which releases the seals placed on the Heavenly Dragons temporarily granting the user immense power rivaling God, however, at the cost of his sanity and lifespan. Issei indirectly activates an incomplete Juggernaut Drive, after believing that Asia was killed by Shalba with his negative emotions overpowering him thus triggering its activation. In this state, his Scale Mail becomes more organic appearing more like a miniature dragon, creating dragon arms and blades from the gems. Issei's immense power and speed allowed him to completely overpower Shalba,which makes his movements almost impossible to follow.

**Longinus Smasher** (ロンギヌス・スマッシャー *Ronginusu Sumasshā*): Its finishing move and one of his most powerful attacks, which opens a hidden launcher on his chest before releasing an enormous amount of aura of immense destructive power. Ddraig described it as a forbidden power he shouldn't have, which can change the environment, if shot on land, then the entire area would vanish, and if shot in the air, the aura will dye the sky red.

* **Illegal Move Triaina** (*Irīgaru Mūbu Toriaina*): The Illegal Move Triaina is a specialized technique used by Issei Hyoudou that changes his Scale Mail armor into three different forms based on the Evil Pieces system. After mastering the forms, they have been integrated into the Boosted Gear completely, allowing him to still use them even after losing his abilities as a Pawn.
	+ **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. Issei can now enter True Queen without having to chant, and due to Diabolos Dragon God, its power has been increased.
	+ **Cardinal Crimson Promotion: Limit Breaker**: A variation of Cardinal Crimson Promotion where Issei boosts this form to the upper limits of its power. He retains all of the abilities of Cardinal Crimson but enhanced.
	+ **Solid Impact Booster:** 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:** 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*): The newest and improved form of **Dividing Gear**, caused from reconciliation between the Heavenly Dragons. Instead of a white gauntlet, Issei instead creates small White Wyverns that can use **Divide** and even **Reflect** incoming attacks. Unlike the Dividing Gear, it reduces Issei's stamina, instead of lifespan. Issei managed to change the White Wyverns to Red Wyverns at will, granting them access to **Boost**, **Transfer**, and **Penetrate** instead.
		- **Crimson Extinct Dragonar** (*Kurimuzon Ekusutinkuto Doragunā*): 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.
		- **Crimson Destruction Dragonar** ( *Kurimuzon Desutorakushon Doragunā*): Issei also made use of the red Wyverns to attach themselves on Xenovia to create her own variation of the Scale Mail.
		- **Ivory Valkyrie Dragonar**: Issei has made use of the white wyverns to attach themselves to Rossweisse and create her version of the Divine Dividing.
	+ **Satan Dragon Flame Nova**: After concentrating fire in his chest via Draconic energy, Issei sends out a condensed beam of fire at his opponent. It made its debut during his Rating Game match against Sirzechs and was strong enough to damage him extensively when he was in base form.
	+ **Longinus Smasher:** 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:** 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*): An upgraded form, caused from releasing Ophis' power, possible because his new body was created through Great Red's flesh. This changing his Scale Mail into crimson and black, with two pairs of dragon wings, and [∞] on all his gems. It changes **Boost** to **D∞D**, overpowering Rizevim, allowing Issei to overpower his Sacred Gear Canceller by using the power of infinite. However, Issei can sustain it for a short period, causing both severe pain and complications making death pale in comparison. After the Evil Dragon War, Ophis adjusting it, removing the "Infinite", renaming it *Pseudo-Dragon Deification*; lessening its original power, but could maintain it for 3 min. to 10 secs., from using it to attack or defend. Drinking the simplified Amritra, a godly drink, allowed him to maintain it for 88 min.. After Issei recovered his sexual desires, he then unlocked the *True-Dragon Deification*, after Great Red's flesh resonated, causing him to awaken the "infinite", then defeated Angra Mainyu. In this state, Hades is noted as stating Issei's power was much greater than Pseudo-Diabolos Dragon, with the aura of a Devil, Dragon, and God mixed in.
	+ **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 of the Bible, which Issei managed to unlock upon using his DxD form for the second time in Vol 21. 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.
		- **Blazing Inferno: Heavenly Outrage**: A variant of Blazing Inferno that is combined with the flames of Incinerate Anthem, adding its Holy Aura for an advantage against Devils.
	+ **Partial Pseudo-Dragon Deification** (部分龍神化, *Bubun Ryūjin-ka*): In Vol 23, Issei can perform a partial Pseudo-Dragon Deification on his armor, letting him channel his dragon god aura to some extent, but still lessens the stamina consumption. He could channel it into his left arm, letting him strengthen his various techniques such as Dress Break, Solid Impact Booster, and Dragon Shot; through transforming his wings using this allows him to move at greater speed.
	+ **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.
	+ **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.
	+ **Endless Dream**: Due to combining the auras of Ophis and Great Red between each other, Issei and Vali are capabale of creating a white beam that completely erases whatever it hits from existence. They achieved it during the Evie War and used it to annihilate Regalzeva and Melvazoa and later agaisnt Dr. Doom and Enchantress. The downside being that if one of them attempts to use it themselves, they risk of possibility of dying completely.

* **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.

* **Formidable Fury**: After merging with the unknown orbs that were left over from the Evie War, Issei gained a new, machine-like form colored black and with an appearance akin to his Knight form but with crystalline armor plates. FxF is his strongest form, capable of overwhelming Despero, eventually defeating the conqueror shortly after obtaining it. During their match in the second Azazel Cup, Issei and Vali were forced to move their fight to another planet as the shockwaves from their clash could destroy the Earth. According to Vali, the power they have in FxF surpasses the original Dragon Gods to the point to where they can defeat them. In addition, he gains new abiities and he can only maintain it for exactly 24 hours.
	+ **Twilight Hellfire**: Issei shoots black flames from his chest that are capable of completely nullifying a person's healing ability. He used them against Despero to defeat him and later Mongul when he tortured him.
	+ **Draconic Blessing**: FxF is capabale of sending portions of Issei's power to his allies, with the end result varying based on their overall power
	+ **Dress Break Ultimate**: In FxF, Dress Break has been enhanced to the point where it can shred its target on a molecular level, destroying an ordinary person in seconds and damage super-powered beings, He can also actiavte it even when not in FxF provided he channeled it through an object prior.
	+ **Welsh Draconic Cosmic Dream:** With this ability, Issei becomes capable of manipulating reality and the changes he makes last for 5 minutes. He can turn illusions of himself or his allies into real, living copies, manipulate concepts of such as gravity or time and can even create or alter objects with his mind, such as turning an ordinary Chess Piece into a Queen Piece. However, He is unable to create anything larger than a house and during that 5-minute duration, he can only manipulate one concept. At maximum range, it can affect an entire city.

* **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 match with Baraqiel to escape a sealing barrier by switching with Rossweisse.

**Ascalon** (アスカロン, *Asukaron*): Issei's second weapon, received from Michael, having been through a ritual by the Three Factions' leaders so he could wield it despite not having the light attribute, and being a dragon host. It was stored in Boosted Gear, letting him extent Ascalon from the gauntlet, and being imbued with Ddraig's power, resulting in an enormous boost in power. Not being a swordsman himself, Issei often channels its dragon slaying powers into his punches, making it easier to harm dragons, and could infuse it into his Crimson Blaster. He could endow Ascalon with **Boost** and **Penetrate**, the effects lasting even after launching it as a projectile at 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.

**Satanic Fury**: A demonic sword created by Azazel to serve as Issei's personal weapon. It resembles a standard Katana with red wrappings and a black blade. It is imbued with a Dragon Aura and can increase the power of both Dragon and Demonic power for the user

**Former Abilties**

* **Pawn Piece** (*Pōn no koma*): Due being the possessor of Boosted Gear, Issei needed to be reincarnated using eight Pawn Pieces, granting him more power than a normal pawn. As a Pawn, he can promote to either a Queen, Rook, Bishop, or Knight. Since his Pawn started adjusting to Ddraig's power, four of his Pawn Pieces turned into Mutation Pieces with different values due to Illegal Move Triaina and Cardinal Crimson Promotion, then the rest turned into Mutation Pieces due to Diabolos Dragon,  a phenomena that even their creator couldn't believe.
	+ **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 Volume 8, after Ajuka Beelzebub rewrote Issei's Evil Pieces, Issei can now use Promotion anytime and anywhere without the King's permission.

## Trivia

* Issei currenlty has 5 familiars; Ryuuteimaru, the Original Hydra, A Norse wolf named Garm, a Greek Giant named Greip and a Water Devil named Mizuki, who is also one of his mistresses.
	+ Out of all of them, Mizuki is the only female.
* The throne in his castle can convert into a large king-sized bed.
* Issei is allowed to grope and makeout with the maids in his mansion and his castle if they are not working but cannot have sex with them.
* Before becoming a Maou, he worked part time as an ExE agent.
* Issei is the first Reincarnated Devil in history to “unlink” from their master’s peerage and create his own political house.
* Issei has a burn mark on his chest thanks to a training session with Constantine, which involved fighting a Hellion with just magic.

* According to Rossweisse and Kuroka, 100cm is Issei’s ideal cup size, though they might’ve been bragging.
* Issei has made it a rule that all of the women in his peerage be braless at all times, even extending it to their peerages as well.
* According to Tiamat, he has a hidden tail

## Navigation

Template:Character Box

1. ↑ His team name during the Azazel Cup
2. ↑ His namesake in the Oppai Dragon show
3. ↑ Light Novel Volume 6, Life.2, Part 3
4. ↑ True Light Novel Volume 2, Life.0, Part 3
5. ↑ Light Novel Volume 2, Life.3, Part 6
6. ↑ Light Novel Volume 7, Life.1, Part 3
7. ↑ Light Novel Volume 9, Life.4, Part 5
8. ↑ Light Novel Volume 12, Life.1, Part 1
9. ↑ Light Novel Volume 2, Life.4, Part 5
10. ↑ Light Novel Volume 5, Life.5, Part 2
11. ↑ Light Novel Volume 5, WINNER, Part 2
12. ↑ Light Novel Volume 10, Life.3, Part 7
13. ↑ True Light Novel Volume 1, Life.5, Part 1
14. ↑ Light Novel Volume 24, Life.5, Part 2
15. ↑ Light Novel Volume 9, Life.4, Part 2
16. ↑ Light Novel Volume 24, Life.5, Part 1
17. ↑ Light Novel Volume 14, Life.4, Part 2
18. ↑ Light Novel Volume 5, Life.3 Cat and Dragon!, Part 1
19. ↑ 19.0 19.1 Cite error: Invalid `<ref>` tag; no text was provided for refs named `Humanoid Dragon`
20. ↑ Light Novel Volume 1, Life.2, Part 2
21. ↑ Light Novel Volume 2, Life.4, Part 5
22. ↑ Light Novel Volume 5, Life.3, Part 6
23. ↑ Light Novel Volume 6, Life.4
24. ↑ Light Novel Volume 11, Life.3, Part 1
25. ↑ Light Novel Volume 20, Life.3, Part 5
26. ↑ Light Novel Volume 9, Last.DxD Template:Ruby and Template:Ruby —United Front—, defeating him using Infinity Blaster and Longinus Smasher
27. ↑ Light Novel Volume 22, Life.5, Part 4
28. ↑ Light Novel Volume 24, Life.5, Part 1, defeated him using Nyuutron Beam Cannon alongside Rossweisse
29. ↑ Light Novel Volume 25, Life.DxD vs Life.GOD —Red Dragon—, Part 2, defeated him using Infinity Blaster, Longinus Smasher, Ascalon I and II
30. ↑ True Light Novel Volume 1, Life.1, Part 3
31. ↑ True Light Novel Volume 2, Oppai Dragon VS Switch Hime, I came to keep my promises!, using Infinity Blaster and Nyuutron Beam Cannon
32. ↑ 32.0 32.1 Light Novel Volume 22, Life.5 Go, the Sekiryuutei Team!, Part 4
33. ↑ 33.0 33.1 Light Novel Volume 25, Life.DxD vs Life.GOD —Red Dragon—
34. ↑ Light Novel Volume 20, Life.3 Hyoudou Issei
35. ↑ Cite error: Invalid `<ref>` tag; no text was provided for refs named `Dragon Arm`
36. ↑ Light Novel Volume 14, Life.3 Maverick Magicians, Part 3
37. ↑ Light Novel Volume 19, Life.2 Various Decisive Battles!, Part 3
38. ↑ True Light Novel Volume 3, Life.2 Kyoto and the Reverse Side of Kyoto, Part 3
39. ↑ Cite error: Invalid `<ref>` tag; no text was provided for refs named `Issei vs. Vali`
40. ↑ 40.0 40.1 Light Novel Volume 16, Life.4 Rizevim Livan Lucifer (The Son of the Morning Star)
41. ↑ Light Novel Volume 12, Life.1 Crimson Promise, Part 1
42. ↑ Light Novel Volume 17, Life.4 The Youth Devil, Part 2
43. ↑ Light Novel Volume 12, Life.-2, Part 2
44. ↑ Light Novel Volume 23, Life.3, Part 4