Chizome Akaguro

Chizome Akaguro also known as Hero Killer: Stain is a villain that is notorious for having killed many Pro Heroes.

He is the primary antagonist in the titular Vs. Hero Killer Arc.

Chizome was under lock up in Tartarus, but has escaped alongside most of the other inmates after All For One's attack on the prison.

He is Tenya Ida's arch enemy for what he did to his brother.

## Appearance

Chizome is an intimidating, muscular man who walks with a distinct hunch, and has a flat, somewhat-triangular face without a nose, which he removed it himself, and an extraordinarily long tongue, tainted with numerous small papillae.

He has rather long, black hair, which he wears in a messy fashion; it would drape over his face if not for his headband and mask, and small red eyes with tiny irises.

He sports a dark combat suit, plated with metal armor across his body to holster his weapons.

The torso is sleeveless, so he instead wraps his arms in yellow bandages, all the way from just below his shoulders to his wrists.

He also wears long black wristbands and a watch on his left arm, and his knees are protected with metal pads, the costume completed by black boots with steel armor. He always dons his signature blood-red scarf and matching headband, as well as the tattered cloth he wears around his face as a mask.

## Personality

Stain is a cold, unforgiving, and merciless man with a sense of duty to cleanse society of false heroes.

He believes that those who become Heroes for fame or money are unworthy of being called the name and only All Might is a true hero.

Due to his strong ideology, he took it upon himself to become the Hero Killer: Stain to stain his own hands with blood to purge fake heroes and change the current society.

Stain does not wish to kill those who are not targets for his own cause.

He dislikes needless bloodshed, thus explaining why he came to blows with Tomura Shigaraki.

He is reluctant to attack Tenya Ida before the hero-in-training provokes him.

He even tells Tenya the true traits of a hero in contrast to those who desire to use their Quirks in selfish ways.

Stain spares Izuku Midoriya because he shows the characteristics of a true hero.

He believes heavily in creeds and convictions, stating that they are needed in order to accomplish anything and that without them people are weak and will eventually die.

In spite of his extremist views and beliefs, Stain does have genuine ideals about Heroism which he stands by firmly.

He does not hesitate to save people he deems worthy of being called Heroes, does not like killing without reason, and will even give advice to his enemies.

He seems to acknowledge that what he is doing is morally wrong, but believes that in order for society to be put on the right path, someone must be what he is, indicating he sees himself as somewhat of a martyr.

Stain's conviction gives him an incredibly murderous aura and bloodlust that paralyzed several heroes in fear.

It gives him enough confidence to willingly challenge several pro heroes at once, even after sustaining major injuries.

## Abilities

* **Overall Abilities**: Stain is an extremely powerful villain who has claimed more lives than any other since All Might's debut. Stain's aptitude allowed him to murder 17 known Pro Heroes, and cripple 24 others to the point of being unable to make a full recovery. Stain has displayed creativity and mastery over his fighting style. He is able to deal with close and long-ranged opponents through a mix of misdirection, aggression, prediction, and use of the environment. His battle prowess allows him to overwhelm his targets in armed combat and compensate for his Quirk's restrictive activation cost. Stain was able to defeat and critically injure Ingenium, a Pro Hero with above-average formidability and high fortitude, who had attempted to apprehend the former vigilante. This spectacle left Tensei as a paraplegic, Stain's 24th crippled victim, and the last Pro Hero that Hero Killer had defeated. Stain's reputation and abilities garnered the attention of Tomura Shigaraki, who attempted to recruit the Hero Killer into the League of Villains. After Stain refused to join the Villain Alliance, Tomura and Kurogiri engaged him, but the swordsman was able to easily overpower the formidable pair. While in Hosu City, Stain attempted to kill the Pro Hero Native, and was faced with Tenya Ida, and was able to incapacitate the new Ingenium, mostly due to the U.A. student being vengeance-driven over the Hero Killer crippling Tensei, Tenya's older brother. Stain almost killed Tenya, had it not been for the timely arrival of Izuku Midoriya, who was searching for Tenya. Even though Izuku's new abilities took Stain by surprise, the ex-vigilante was still able to blindside him with his Quirk, Bloodcurdle, but, seeing Izuku as a true hero, decided not to kill the latter. After Stain paralyzed Izuku, he attempted to kill Tenya and Native again, but his crusade was once again interrupted due to the additional appearance of Shoto Todoroki. Stain found it more difficult to handle Shoto compared to Izuku, Tenya, and Native, mostly due to the heterochromatic using the interchangeability of his fire and ice powers. This drawn-out confrontation caused the effects of Bloodcurdle to wear off for Izuku, giving the One For All inheritor a chance to join the fight, resulting in Izuku and Shoto tag-teaming to oppose the Hero Killer. Tenya also found himself free from his paralysis, and with him jumping into the fray as well, having purged himself of his desire for revenge, Stain found himself grossly outnumbered, three-to-one, and nearly overpowered. According to Izuku, Stain's tenacity completely changed his movements after getting desperate to kill Tenya before reinforcements arrived. Overall, it took the combined efforts of Izuku, Shoto, and Tenya, 3 of U.A. High School's strongest students, to finally defeat Stain. After the battle, Shoto commented on Stain being a strong combatant who likely allowed him and Izuku to live. When the Winged Nomu arrived on the scene and captured Izuku, Stain broke free of his restraints and displayed that, even when incapacitated, he was still more than capable of immobilizing and killing the artificial human, saving Izuku as a result.

* **Immense Speed**: Stain's most notable ability is his unmatched speed. He is able to evade Tenya's high-speed kick when they first clashed, as well as partially block Tenya's Recipro Burst during the ensuing battle, and Tenya is revered as U.A.'s fastest student. Shoto Todoroki was unable to land a single strike on Stain, even using both fire and ice attacks, due to the Hero Killer's formidable reaction time. Shoto mentioned that Stain is so fast that he could not even consider running away as an option. Despite Stain's incredible speed, however, he was unable to evade the combined, high-speed assault from Tenya's Recipro Extend, and Izuku's Full Cowl that was used in tandem with a 5% Detroit Smash, though Shoto claims this was partly because he was getting desperate knowing several pros would be arriving on the scene.
* **Enhanced Strength**: Stain has a considerable amount of strength, as it was enough to cleanly slice through many of Shoto's ice attacks.
* **Immense Stamina**: Stain has a high pain threshold, as shown when he takes a direct blow from Izuku's 5% Detroit Smash to the head and remained mostly unfazed. After battling against the trio of U.A. Students and killing the Winged Nomu, it was revealed that Stain's lungs were perforated by his broken ribs, but was able to remain standing even after falling unconscious.

* **Tactical Intellect**: Stain is shown to possess some analytical skills. Stain took notice of all the chaos caused in Hosu City, and correctly deduced that Tomura Shigaraki and the League of Villains were behind the attack. While engaged in battle against Shoto, Stain pointed out that the heterochroatmic hero relied too much on the destructive power of his Quirk, making him predictable and easy to exploit in battle. Stain also carries a spare knife under his sleeve in order to surprise his opponents in the event that the Hero Killer is deprived of most of his weapons.

* **Indomitable Will**: Stain's ridiculous force of will has a strong impact on the psyches of others, even during combat. He was able to paralyze several top heroes, including a seasoned veteran like Gran Torino and the No. 2 (now No. 1) Hero Endeavor, with fear despite having suffered severe injuries. He was also able to force many heroes to reconsider their actions and beliefs, even during combat. Even after his capture, footage of his speech to the heroes inspired many criminals and vigilantes into action, bolstering the ranks of the League of Villains considerably.

## Quirk

Bloodcurdle: Chizome's Quirk allows him to paralyze his target upon tasting a sample of their blood. The amount of time a victim remains paralyzed depends on their blood type; in ascending order from shortest to longest duration, they are: **O**, **A**, **AB**, and **B**. The maximum amount of time that anyone can be paralyzed is eight minutes.

## Weapons

**Weapon Arsenal**: Before being arrested, Stain carried various weapons with him:

* A worn and partially damaged katana.
* Five daggers.
* Throwing knives.
* Toe-spiked boots.
* Folding knives.