Yuuto Kiba

**Yuuto Kiba**, known formerly as **Isaiah**, is a second-year High School Student at Kuoh Academy in Class 2-A and the school's pretty boy who is adored by many female students and hated by most male students. He is Rias Gremory's two Knights along with Xenovia Quarta and a member of the Occult Research Club.

He was a victim of the Holy Sword Project where he was the only survivor. He became Rias' servant when she saved him from death, but still swore the accomplish his revenge to those who treated him as test subjects and killed his friends.

The process caused untold suffering for Yuuto and his friends, and after the project failed, the supervisor, Valper Galilei decided to kill off all of the participants, leading Yuuto to develop an overwhelming hatred for Holy Swords, most especially the Holy Sword Excalibur.

## Appearance

Yuuto is a handsome young man with short blond hair, blue eyes (bluish-gray eyes in the anime) and a mole underneath his left eye.

He wears the Kuoh Academy boys' school uniform, which consists of a black blazer with white accents over a white, long-sleeved dress shirt with a black ribbon on the collar, matching black pants, and brown dress shoes.

## Personality

Yuuto is overall an upbeat person and cares deeply for his comrades. He's also a very polite and friendly individual, even considering Issei's initial dislike towards him. As a Knight, he has pride, chivalry, dignity, and honor befitting one, and is shown to enjoy fighting fellow swordsmen like Karlamine.

Initially, he had a deep hatred towards the Holy Swords or their wielders. But thanks to the efforts of the Occult Research Club members and Adrian Toussaint, as well as the souls of his deceased friends, who died earlier being victims of the Holy Sword Project, helped him overcome his drive for vengeance, making him more accepting of Holy Swords.

Yuuto considers Isami Hyoudou to be his best friend, but also feels a sense of rivalry with her, wishing to one day fight her fair and square. At the same time, he also shows deep concern for her well-being.

Yuuto is very loyal to Rias as her Knight, calling himself **Rias Gremory's Sword** while also thinking of her as his own older sister.

Yuuto is surprisingly a lecher himself, as commented by Isami.

## History

Originally an orphan named **Isaiah**, Yuuto was taken in by the Church and was chosen to be a part of a project called "The Holy Sword Project" under the supervision of Valper Galilei. But when the project failed to show merit, Valper's decision to eliminate them as failures, was directly responsible for the deaths of his friends and all other participants, resulting in Yuuto developing extreme antagonism against Holy Swords especially Holy Sword Excalibur.

After successfully escaping the facility with the help of his friends, he finally succumbed to the poison he inhaled. Lying on the ground, he was in his dying moments when he was found and was reincarnated by Rias as her servant Devil. During his initial days as Rias' servant, he was distrustful of her and all those related to her. He later practices his swordsmanship under Okita Souji, who was the first person he opened up to.

One day, when giving tribute to his deceased friends, he was confronted by a Stray Devil and fought a hard battle until his master, Okita, comes to rescue him. After this event, he finally began trusting Devils, opened up to Rias Gremory and took upon the name Rias thought of specifically for him, "**Kiba Yuuto**".

## Powers and Abilities

**Reincarnated Devil Physiology**: As a Reincarnated Devil, Yuuto's attributes such as strength, durability, endurance, power, longevity, are all enhanced to superhuman levels.

* **Superhuman Speed**: Due to his Knight piece, Yuuto possesses superhuman speed, which he has honed as the core of his fighting style to where Isami referred to it as *God-Speed*. His great speed has also allowed him to use his swordmaster's famed Sandanzuki, a three-strike technique with one initial movement.
* **Superhuman Durability**: While his durability is inferior to Isami's, Yuuto has shown great tolerance to damage and pain, having withstood blows from even Sairaorg. He could stand up and fight after Siegfried in his Chaos Drive form chopped off one of his arms, ran ice pillars through his legs, and sent him crashing into the ground with enough force to make a crater.
* **Immense Demonic Power**: Yuuto has all the powers and abilities common to Devils, including the power to cast spells. In Underworld, he was able to use demonic power to create an illusion of himself against Siegfried in order to perform a sneak attack.
* **Longevity**: Kiba, as a Devil, could live for over multiple centuries due to being a Reincarnated Devil.

**Natural-Born Demon Sword Wielder:** Because of his Sword Birth, Yuuto has proven to be more compatible in using demonic swords compared to holy swords, which was proven as Gram chosen him over Siegfried, then all his other demonic swords, Balmung, Nothung, Tyrfing, and Dáinsleif chose him.

**Holy Sword Wielder**: After taking in the Light Container, Yuuto became capable of wielding Holy Swords, even borrowing Xenovia Quarta's Durandal and Isami Hyoudou's Ascalon one time.

**Master Combatant**: Yuuto could instantly understand his opponents' thinking and fighting methods, allowing him to anticipate his opponents' moves. He could understand his enemies' strategy, he is able to find their flaws and weaknesses and take them down with little effort.

* **Attack Prediction:** Yuuto could easily interpret and predict his enemies' attacks and react to the incoming attack, brush off, or avoid the incoming attacks even from a dead angle.
* **Expert Hand-to-Hand Combatant**: While preferring to fight at mid to long-range to make full use of his demonic powers, Yuuto is also a highly capable close-range and bare-handed fighter. When a street gang came to Kuoh Academy to cause trouble, Yuuto calmly approached them, and showed his skill by easily subduing them (albeit with some assistance from Issei and Nyx). Like his weapon style, Yuuto's bare-handed style is more about precise strikes than brute force.
* **Master Swordsman:** Yuuto is a swordsman of incredible skills who uses it in tandem with his speed, which lets him dominate most opponents. After training again with Okita Souji, his swordmaster, Tsubaki Shinra considered him to be Rias Gremory's Ace instead of Isami Hyoudou. Upon being defeated by Siegfried in Kyoto, Yuuto trained his skills even harder, improving to where he overwhelms him in the Underworld. Adrian Toussaint, a man renowned as the **Strongest Swordsman in the World** and the **Strongest Exorcist**, was also his mentor.
	+ **Sandanzuki**: A technique of the former captain of the Shinsengumi and his master Okita Souji, Yuuto swings his sword with such speed and precision that it appears to split into three in a single instant and attack in different directions.

**Genius-Level Intellect**: Yuuto is an extremely skilled swordsman that learned from one of the strongest swordsmen in the Underworld and is not hesitant to learn the basics of swordsmanship from scratch despite being immensely skilled, to improve and perfect his technique and leave no room for error. He also carefully pays attention to his opponents' steps and movements and attacks with thought out strategies, as shown when he disguised himself as one of his knights in order to catch Siegfried off guard.

* **Expert Tactician**: He generally takes a tactical approach to combat, preferring to overwhelm his opponents with plans and objectives rather than overpowering them like Isami Hyoudou and Xenovia Quarta. In his second battle against Siegfried, Yuuto carefully observed Siegfried's movements and used his demonic power to deploy an illusion as he himself hid within his Dragon Knights, allowing him to perform a successful sneak attack the moment Siegfried let down his guard.
	+ **Adaptation**: Yuuto could easily adapt to the conditions and environments around him, allowing him to virtually fight in any possible situations.

**Flight**: Being a Devil, Yuuto can use his wings to fly.

## Equipment

**Sword Birth**: Yuuto's primary weapon and Sacred Gear, it has the ability to create numerous demon swords each with its own attributes and properties at his disposal, such as the *Holy Eraser* and *Flame Delete*. The blades of these swords can also emerge from any surface within Yuuto's limited area.

* **Holy Eraser:** A demonic sword with a dark blade that devours holy energy and other sources of light, the sword can also create multiple appendages that stretch out to absorb light from a long-range. However, it's not strong enough to absorb the holy energy from a true Holy Sword.
* **Flame Delete:** A sword with a blade made of ice that is capable of freezing flames itself.
* **Replenish Calm:** A sword that contains a miniature black hole which exhibits a strong gravitational force that sucks up almost anything.
* **Flame Sword:** A demon sword with a blade made of fire with presumably the opposite effects of Flame Delete.
* **Destruction Sword:** A gigantic two-handed demonic sword that's about more than two meters long and releases an ominous aura with presumably much destructive power. However, it could not compare with Excalibur Destruction, and as stated by Xenovia Quarta. Wielding it requires a lot of strength at the loss of Yuuto's speed, therefore leaving it unnecessary for his fighting style.

* **Sword of Betrayer**: Yuuto's **Ex-Side** Balance Breaker, which lets him create Holy Demonic Swords of various sizes and attributes. He achieved it in Kuoh Academy, during their fight against Kokabiel, Valper Galilei, and Freed Sellzen by "merging" his Sacred Gear with the Light Container made from his deceased comrades. During Underworld, Yuuto was able to create a defensive shelter during these swords. After he "stabilized" in Qlippoth Faction, he gained the ability to absorb holy aura with its demonic power and then use it to enhance its own; naturally, the same can be done in vice versa.
	+ **Durandal Birth:** A combination technique between Yuuto and Xenovia Quarta, in which he sprouts countless Holy Demonic Swords that have been enhanced by Durandal's holy aura.

**Blade Blacksmith**: His second Sacred Gear and is the holy version of Sword Birth, which Yuuto had achieved in Rating Game, after gaining his irregular Balance Breaker. Being the counterpart of Sword Birth, he can create numerous holy swords with different attributes.

* **Glory Drag Trooper**: Yuuto's Sub-Species Balance Breaker for Blade Blacksmith, which creates an army of holy sword-wielding Dragon Knights able to imitate either the speed or technique of the user, the latter was shown during Qlippoth, against mass-produced evil dragons wielding the Bölverk Gram aside from Gram itself. However, he cannot use both the Sword of Betrayer and Glory Drag Trooper at the same time. Yuuto can also equip armor like the one worn by his Dragon Knights in order to protect his body or trick his opponents by hiding in the army. However, he cannot use both the Sword of Betrayer and Glory Drag Trooper at the same time.
* **Dragon Knights of the Holy Priest**: A technique in which Yuuto transforms his Dragon Knights into armor pieces with aura propellers for his torso and legs. When in use, it drastically enhances Yuuto's speed to the point that even Isami in his Pseudo-Dragon Deification had a hard time perceiving it.

**Bölverk Gram**: It possesses an immense amount of demonic aura that even outclasses the demonic power of the two Super Devils - Sirzechs Lucifer and Ajuka Beelzebub. According to Yuuto, its aura alone is more powerful than the combined demonic power of all the Super Devils created by the Hades using the remains of Lilith's clones.

It possesses ridiculous destructive power, capable of creating destructive energy blasts that could annihilate anything they touch to a molecular level, far exceeding the destructive power of Gram, Durandal, and Excalibur Destruction (pre-recreation) combined. In Resuce Arc, when sparring against Sirzechs Lucifer, a slash of its destructive energy was shown to be powerful enough to destroy even one of Sirzechs Lucifer's most powerful attacks - the Extinguishing Star. As it was created from five different Demonic Swords, it also possesses all the special abilities of said swords.

* **Dragon-Slaying:** The special ability of Gram. It allows the wielder to gain advantages against Dragons and draconic beings, as well as those with the Draconic attribute like the wielders of Dragon-based Sacred Gears such as the Boosted Gear and the Divine Dividing.
* **Aerokinesis:** The special ability of Balmung. It allows the wielder to generate and control winds, creating powerful whirlwinds capable of blowing a squad of fully armed soldiers away with a single swing.
* **Sharpness:** The special ability of Nothung. It allows the sword to cut through all obstacles in its path, no matter if they are physical items such as projectiles and shields, or energy-based attacks.
* **Hemokinesis:** The special ability of Tyrfing. It allows the wielder to manipulate the blood of anyone who had been wounded by the sword.
* **Glaciokinesis:** The special ability of Dáinsleif. It allows the wielder to generate and control ice, with the main function being creating ice pillars to pierce through the opponent's body.

**Speed Boosters:** Yuuto focuses his aura solely to his torso and legs, forming rocket boosters and shoes visually similar to propulsion devices on his back and feet, with the shoes also containing boosters. In this state, he is capable of completely out pacing those who could formerly keep up with his speed.

## Quotes

* *"I, Kiba Yuuto, will protect you and my comrades for the rest of my life as the “Knight” of Rias Gremory's group"* - Yuuto to Rias Gremory.
* "*I seriously won’t know what will happen when I am within this group.*" Thinking to himself
* "*I... will become a sword for my comrades.*"

## Trivia

* Yuuto's birthday is on May 30.
* Yuuto's height is 172 cm. (5 feet 8 inches) and his weight is 61 kg. (134 lbs.), according to the visual book with his data.
* Yuuto has different meanings: (yuu) "gentleness, superiority" or (yuu) "distant, leisurely" combined with (to), or (to) "person" or (to) "soar, fly"; referring to his personality and speed as a Knight.
	+ One of the meanings of Kiba is "Sharp", which would be a reference to the fact he is a swordsman.
	+ Kiba Yuuto means "Horse-Rider" in reference to him being a Knight because Knights in chess are symbolized by horses.
* His original name Isaiah comes from English and Biblical Origins meaning "Yahweh is Salvation".
* Yuuto is one of the servants of Rias who had been given a new name by the latter. The other one being Koneko.
* Yuuto's swordsmanship is based around the Tennen Rishin-Ryu, though it isn't entirely the same sword style since he learned how to wield swords and fighting posture from Okita Souji.
* In Rating Game fighting-types, Yuuto is considered a Technique-type.
* Yuuto has already made a short-term pact with an outstanding young boy magician that skipped grades.
* Yuuto does a cooking vlog series on DeviTube called "Handsome Dude Does Cooking," which is popular with young girls.