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Villain Overview

Both this sham-filled society... and the criminals who wield their power in the name of petty mischief... are targets of my purge... All for the sake of a better society...
~ Stain's most famous quote.
To truly accomplish anything... one needs will and conviction. Those without it... the weak ones... They'll be weeded out. It's only natural. That's why you're about to die.
~ Stain's advice to Tomura Shigaraki.
You false hero... I'll make this right... These streets... must run with the blood of hypocrites! Hero... I will reclaim that word! Come on, just try and stop me you fakes! There is only one man I'll let kill me! He is a true hero... ALL MIGHT IS WORTHY!!!
~ Stain challenging the heroes one last time.

Chizome Akaguro, or better known as Hero Killer: Stain and formerly the vigilante Stendhal, is a major antagonist in the Manga/Anime Series My Hero Academia. He is a Villain and former vigilante that is notorious for killing many Pro Heroes that go against his ideology. He serves as the main antagonist in the Vs. Hero Killer Arc.

He is voiced by Gou Inoue in the Japanese version who also voiced Keyloid from Tokumei Sentai Go-Busters, and Robert McCollum in the English dubbed version, the latter of whom is best known for voicing Reiner Braun in Attack on Titan and Donquixote Doflamingo in One Piece.


Stain unmasked.

Chizome's general appearance is that of a tall man with a muscular build. He has messy black hair, a long pointed tongue and a flat face with no visible nose, due to cutting it off.

As Stain, he wears a combative outfit armed with sharp bladed weapons, a long torn scarf and bandana around his neck and eyes. He also wears bandages around his arms and boots with spikes on the toes.

As Stendhal, his hair was much longer and kept in a straightened ponytail and wore a mask that covered the entirety of his face. His overall outfit was heavily armed with combative armor.


Chizome is a very cold-hearted, methodical, and ruthless man. When he was in high school, he noticed how some students were applying to become heroes simply for income and fame. Disgusted by those ideals, he created an ideology of building a new world filled with true heroes. At first, he tried to spread word through communication, but when no one listened to him, his only other method was concentrated bloodshed, killing all the heroes he deems as "fakes". Better explanation, Stain targets the likes of anti-heroes (heroes with bad qualities.)

Despite his unforgiving nature, Stain has come to respect others. Most notably is All Might, whom Stain believes to be not only a true hero, but the only real hero to exist in the world. His admiration for All Might runs deep in him that he only allows All Might to be the one to kill him. Stain has shown to respect others who are strong and bravely willing to fight to save someone's life like Izuku Midoriya. His respect for Midoriya allowed him to spare his life.

However, he can be utterly disgusted by heroes who are out to stop him for their own selfish purposes and has no compunction towards killing them, like Tenya Iida, whose only desire was revenge against him for nearly murdering his brother. While Stain despise heroes who are out for fame and money, he also dislikes villains who are out for unnecessary violence and bloodshed, such as Tomura Shigaraki.

As Stendhal, he was a ruthless vigilante who had no problem with killing criminals and believed those who wielded power without conviction deserved death. That being said, he also had no problem with allying himself with villains like Kuin Hachisuka if it worked in his favor. He also appeared to have a split-personality, treating his vigilante and civilian personas as two different entities. After his confrontation with Knuckleduster however, Stendhal changed his beliefs and came to believe that "fake heroes" were the root of the society's problems, which led to him becoming the notorious hero killer he is known as now.



Sometime before the series Chizome was inspired by All Might to enter a private hero school to be just like him. However, he descended into hopelessness and despair after realizing that most students simply wanted fame and fortune. This caused Chizome to drop out and start the revival of heroes ideology but no one listened so eventually becoming the vigilante Stendhal using action and violence to change the world.

Vigilante - My Hero Academia: Illegals

As Stendhal.

Chizome later took on a career as a vigilante named Stendhal, where he would kill villains. Around this time, he was working in a villain operation with Kuin Hachisuka, who was selling drugs to criminals that would enhance their Quirks. Later on, he got himself in a fight with the vigilante, Knuckleduster, who ended up smashing his nose. Stendhal eventually returned back to Kuin, only to betray her. Eventually, he cut off his entire nose completely and eventually becomes his current persona, Stain.

My Hero Academia

U.A. Sports Festival Arc

Stain was first mentioned in an incident where he nearly killed Ingenium. He later appeared on a building in middle of town. He began stating how people are misguided and that he will be the one to show them reality. He was approached by Kurogiri who asked that they could meet elsewhere.

Vs. Hero Killer Arc

Stain pins down Tomura.

Stain was brought to the League of Villains hideout where he met Tomura Shigaraki, who was interested in making him join his group. Stain had no interest, as he did not approve of Tomura's goals of destroying All Might and other people who stands in his way. Their meeting ended up becoming physical when Stain had pinned down Tomura but amused by his defiance. As the meeting with the League of Villains ended, he expressed interest in seeing Tomura develop with time and asked to be returned to Hosu so that he could resume his work.

Stain cornered a hero in the alley that he deemed a fake. He was about to kill him until Tenya Iida decides to confront him. Chizome did not want to fight the teen but the latter was insistent on getting vengeance on for his older brother, Igenium, that he nearly killed. After getting into a skirmish, Stain decides that he would kill Tenya since he did not uphold the true values of a hero and was blinded by vengeance and vigilantism. Izuku appeared soon enough to prevent Stain from killing Tenya.

The fight continued when Stain overwhelmed Izuku. He decides that he would spare Izuku's life since he is a true hero who is willing to save his friend. Stain turned his attention back to attempting to kill Tenya and other individual. Shoto also appeared as a back up to stop Stain from killing the men. The fight dragged on for nearly ten minutes until Stain was knocked out by a combined attack from Izuku and Tenya.

Stain's bloodlust.

After the fight, Stain was immobilized and taken by the men and was about to be handed over to the police. When one of the Nomus tried to kidnap Izuku, he got up and immediately attack the Nomu. He saved Izuku and then decided to take him as a hostage. Endeavor appeared on the scene, as Stain let out an intense amount of blood lust which left everyone there in fear. Before collapsing from his injuries, he said that he would not want to be killed off by any of the fake heroes and that he deserves to be killed off by All Might. After collapsing, Stain was taken into custody by the police. His detainment became one of the major news outbreak throughout Japan and other places.

After his arrest and imprisonment, Chizome's ideology would become an inspiration to many villains and an excuse to commit horrible crimes against the public.

Hideout Raid Arc

Imprisoned in Tartarus.

After All For One was defeated, he was later arrested and placed in Tartarus. Stain observed him, while still recovering from his injuries.

Current Arc

Stain was still kept imprisoned in Tartarus, along with many other villains, and appears to have fully recover from his injuries. He was originally planned to have a face to face meeting with All Might himself, but due to unknown circumstances, All Might had to delay the meeting.

Like the rest of the prisoners, Stain was freed from his imprisonment when Tomura proceeded to break into the prison with Near-High End Nomus, allowing him to escape. He eventually made his way to an abandoned building, presumably his home, where he came across his katana and unsheathed it. Free to operate under his own terms now, he proceeds to resume his duty as the Hero Killer once more. He then eavesdropped on Izuku's conversation with All Might, telling his mentor that he shouldn't worry about him since he can now take care of himself, before leaping away as All Might collapses and cries.

Powers and Abilities

Demonstration of Stain's Quirk.

  • Bloodcurdle: Stain's Quirk allows him to paralyze and immobilize his opponent by ingesting samples of their blood. Depending on the person's blood type, the amount of time for a victim to be paralyzed varies, with Type B being the longest duration. Nonetheless, the maximum duration for someone to be paralyzed is said to be 8 minutes.
  • Enhanced Speed & Reflexes: Stain has shown to be quite agile and evasive as he was capable of avoiding Iida's attacks with ease. He has also shown to have great reaction time, as he was able to evade Todoroki's ice and flame attacks. He was also able to slice up Todoroki's ice walls in many swifts in an instant.
  • Enhanced Strength: Stain has shown a degree of super strength when slicing through Todoroki's ice walls with one strike.
  • Immense Endurance: Stain seems to have a high pain tolerance, as shown when taking a full punch of Midoriya's 5% Detroit Smash and a full kick from Iida's Recipro Extend. He was also able to tank Todoroki's fire, with only scratches left on him. He was also shown to be standing still, even after having his lungs being pierced and losing consciousness.
  • Highly Perceptive Combatant: Stain is a very cunning combatant. He has shown to have both creativity and mastery over his fighting style, capable of fighting his opponents from close and long ranges through a mixture of misdirection, aggression and prediction. He also uses the environments around him to give him advantages.
  • Intimidation/Fear Inducement: As an infamous killer and villain, Stain proves to be very frightening and holds an unparalleled bloodlust towards the heroes he deems as "fake" which he unleashed after nearly escaping his capture. His killing intent was released in a terrifying wave, which struck a paralysing fear into everyone present including two veteran and powerful pro heroes, Endeavor and Gran Torino respectively.

Overall, Stain is a dangerous and terrifying villain. He nearly killed Ingenium in combat, a powerful pro hero, with little to no difficulty. He has killed 17 pro heroes altogether, while crippling 23 to the point of being unable to make a full recovery. Shoto Todoroki, one of Class 1-A's most powerful students, even acknowledged the fact that Stain is a strong combatant, while Izuku Midoriya commented that Stain was most likely holding back, as he could have killed either of them at any time. Even after falling to the combined efforts of Todoroki, Midoriya and Iida, Stain was only knocked down for a brief while, before immediately going back on his feet to rush and kill a Flying Nomu that tried to kidnap Midoriya.


Stains weapons.png
  • Weapon Arsenal: Stain carried a variety of weapons that mainly consisted of sharp, bladed weapons such as knives, daggers and a katana of his own.


Stain: A hero can only claim that title as long as his soul burns fiercely in service of others. However...say a god has fallen, prostrate upon the earth...and his divine soul has turned feeble and mortal...

All Might: What? You saw that? All this time, you've been...?
Stain: No, I don't presume to know you. But if you are a true hero...make use of this information from my time in Tartarus. Then come for the life Stain the man who murdered 40 heroes. All for the sake...of fixing this society.

~ Stain to All Might


Hero Killer by Yuki Kajiura

All for the Sake of a Correct Society by Yuki Kajiura


  • Along with Kai Chisaki, Stain is one of the few villains that helps Shigaraki's character grow into a better villain. In this case, Stain's ideals serve as a starting point for Shigaraki's conviction.

External links


           Boku no Hero Academia Logo.pngVillains

League of Villains
All For One | Tomura Shigaraki | Kurogiri | Daruma Ujiko | Gigantomachia
Vanguard Action Squad: Dabi | Himiko Toga | Spinner | Twice | Mr. Compress | Muscular | Moonfish | Mustard | Magne | Chainsaw Nomu
Nomus: Kurogiri | Nomu | Chainsaw Nomu | Hood | Woman | Eleph | Robot | Chubs | Ribby
Associates: Giran

Shie Hassaikai
Leaders: Overhaul | Chronostasis | Mimic
Eight Bullets: Rikiya Katsukame | Shin Nemoto | Kendo Rappa | Toya Setsuno | Yu Hojo | Soramitsu Tabe | Deidoro Sakaki | Hekiji Tengai

Meta Liberation Army
Grand Commander: Re-Destro
Leaders: Curious | Trumpet | Skeptic
Warriors: Geten | Slidin' Go
Original Members: Destro

Paranormal Liberation Front
Grand Commander: Tomura Shigaraki
Lieutenants: Dabi | Himiko Toga | Twice | Mr. Compress | Spinner | Re-Destro | Trumpet | Skeptic | Geten
Warriors: Gigantomachia | Slidin' Go
Associates: All For One | Cider House | Daruma Ujiko | Dictator | Ending | Giran | Kai Chisaki | Kunieda | Lady Nagant | Muscular | Moonfish | Starservant | Sludge Villain

Villain Factory
Kuin Hachisuka | Number 6

Two Heroes: Wolfram | Swordkil | Daigo | Nobu
Heroes Rising: Nine | Slice | Mummy | Chimera
World Heroes' Mission: Humarise (Flect Turn | Beros | Sidero | Serpenters | Leviathan | Rogone | Allan Kay | Otheon Police Commander)

Creature Rejection Clan | Endeavor | Gentle | Innsmouth | Kotaro Shimura | La Brava | Peerless Thief | Reservoir Dogs | Stain