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...
Chizome Akaguro in "Conclusion?!"

Chizome Akaguro ( (あか) (ぐろ) () (ぞめ) Akaguro Chizome?), also known as Hero Killer: Stain (ヒーロー (ごろ) しステイン Hīrō Goroshi Sutein?) and formerly the vigilante Stendhal (スタンダール Sutandāru?), is a villain and ex-vigilante 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.[3]


Chizome's real face

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.

As Stendhal, he had long black hair that he tied into a ponytail. He wore black clothing that looked similar to bulletproof clothing and had six small folding knives, three on the right side and three of the left side, with two pairs of pockets beneath them, but his most striking feature was his mask, which completely covered his face.


Stain's frightening intensity.

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.

The Hero Killer's malefic aura.

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.

As Stendhal, he believed that any who "wielded power without conviction" were automatically sinners deserving of death, and used this belief to justify his actions as heroic instead of hypocritical. That said, he was perfectly willing to work alongside villains like Kuin Hachisuka as a means to an end. Stendhal also appeared to suffer from a split-personality disorder of some kind that caused him to view his vigilante and civilian identities as two separate entities (his mental change signified by whether or not he is wearing his mask at the time). However, his confrontation with Knuckleduster caused him to change his beliefs, and start thinking that those who are not "true heroes" are the reason for society's problems.


Stain's abilities allowed him to easily overpower Tomura Shigaraki of the League of Villains.

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.

Despite being incapacitated, Stain was able to swiftly kill the Winged Nomu, and save Izuku Midoriya from the creature's grasp.

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, 3-to-1, 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 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.


Bloodcurdle ( (ぎょう) (けつ) Gyōketsu?): 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.


3/5 C
6/5 S
5/5 A
3/5 C
1/5 E
Chizome's stats, according to the Ultra Archive Book

4/6 B
5/6 A
5/6 A
4/6 B
5/6 A
Chizome's stats, according to the Ultra Analysis Book


Stain's weapon arsenal.

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.

Battles & Events

Character Appearances

U.A. Sports Festival Arc
22. That's the Idea, Ochaco Absent
23. Roaring Sports Festival Absent
24. Mad Dash and Knockdown Absent
25. In Their Own Quirky Ways Absent
26. Chase Down the Leader Absent
27. Earth-Shatteringly Fateful Negotiations Absent
28. Strats, Strats, Strats Absent
29. Unaware Absent
30. Cavalry-Match Finale Absent
31. The Boy Born with Everything Absent
32. Smile, Prince of Nonsense Land! Absent
33. Shinso's Situation Absent
34. Victory or Defeat Absent
35. Battle On, Challengers! Absent
36. Bakugo vs. Uraraka Absent
37. Midoriya and Endeavor Absent
38. Todoroki vs. Midoriya Absent
39. Shoto Todoroki: Origin Absent
40. Emancipation Absent
41. Fight On, Ida! Debut
42. Final-Match Time Appears
43. Todoroki vs. Bakugo Absent
44. Relaxing Day Off Absent
Vs. Hero Killer Arc
45. Time to Pick Some Names Absent
46. Bizzarre! Gran Torino Appears Appears
47. Struggling Appears
48. Getting the Knack Absent
49. Midoriya and Shigaraki Appears
50. Kill 'Em Dead Appears
51. No, Knock it Off, Ida! Appears
52. Hero Killer Stain vs. U.A. Students Appears
53. From Todoroki to Ida Appears
54. Re: Ingenium Appears
55. Conclusion?! Appears
56. Conclusion Appears
57. The Aftermath of Hero Killer Stain Appears
58. Internship's End Absent
59. Listen Up! A Tale From the Past Absent
Final Exams Arc
60. Gear Up For Final Exams Absent
61. The Worst Combo Absent
62. Katsuki Bakugo: Origin Pictured
63. Yaoyorozu Rising Absent
64. The Task at Hand Absent
65. Wall Absent
66. Midoriya's Observations Absent
67. Stripping the Varnish Mentioned
68. Encounter Mentioned
69. Interview with Midoriya Flashback
Forest Training Camp Arc
70. Wild, Wild Pussycats Absent
71. Kota Absent
72. Day Two Absent
73. Good Evening Absent
74. Smoke Signal Mentioned
75. Stake Your Life, Hero! Absent
76. My Hero Absent
77. It's Chaos Absent
78. Whirling Chaos Mentioned
79. Drive It Home, Iron Fist!!! Absent
80. Establishing the Bakugo Bodyguard Brigade Flashback
81. Roaring Upheavel Mentioned
82. What a Twist! Absent
83. Loss Absent
Hideout Raid Arc
84. From Ida to Midoriya Absent
85. Nothing but Fools Mentioned
86. Before the Storm Absent
87. Clash Absent
88. All For One Absent
89. All for a Certain One Absent
90. Reach Out Absent
91. Symbol of Peace Absent
92. One For All Absent
93. One For All's Ember Absent
94. From Teacher to Disciple Appears
95. End of the Beginning, Beginning of the End Absent
96. Home Visits Absent
97. Tell It Like It Is, Mom Absent
Shie Hassaikai Arc
122. A Season for Encounters Absent
123. Unrivaled Absent
124. Trouble Ahead!! Episode: Work Studies Absent
125. Overhaul Flashback
126. Open Up, World Absent
127. Sir Nighteye and Izuku Midoriya and Mirio Togata and All Might Absent
128. Boy Meets... Absent
129. Eri Absent
130. Listen to the Truth Absent
131. Fighting Fate Absent
132. The Plan Absent
133. Catch Up, Kirishima Absent
134. Let's Go, Gutsy Red Riot Absent
135. An Unpleasant Talk Absent
136. Close at Hand!! Absent
137. Restraint!! Absent
138. Go!! Absent
139. Shudder! The Underground Labyrinth Absent
140. Suneater of the Big Three Absent
141. Hassaikai: Behind the Scenes Absent
142. Shield and Shield, Spear and Shield Absent
143. Let’s Rumble, Rappa!! Absent
144. Red Riot, Part 1 Absent
145. Red Riot, Part 2 Absent
146. Temp Squad Absent
147. Twoga!! Absent
148. The Anguish of Young Twoga Absent
149. Don't Get Mad, Irinaka Absent
150. Mirio Togata Absent
151. Mirio Togata!! Absent
152. Lemillion Absent
153. Transform! Absent
154. Unforeseen Hope Absent
155. Saviors, the Saved and a Hero's Place Absent
156. The Power of Those Saved Absent
157. Infinite 100 Percent Absent
158. Chisaki's Warped Compassion Absent
159. It's Over!! Absent
160. Expressway Absent
161. Bright Future Absent
162. Suitable One Absent
Meta Liberation Army Arc
218. The Meta Liberation Army Absent
219. Go! Slidin' Go! Absent
220. My Villain Academia Mentioned
221. Memento from All For One Absent
222. Tomura Shigaraki: Distortion Fantasy
223. Cockroaches Absent
224. Revival Party Absent
225. Interview with a Vampire Absent
226. Bloody Love Absent
227. Sleepy Absent
228. Wounded Soul Absent
229. All It Takes Is One Bad Day Absent
230. Sad Man's Parade Absent
231. Path Absent
232. Meta Abilities and Quirks Absent
233. Bright Future Flashback
234. Sense Destruction Absent
235. Tenko Shimura: Origin Absent
236. Tenko Shimura: Origin, Part 2 Absent
237. Tomura Shigaraki: Origin Absent
238. Liberation Absent
239. Successor Absent
240. Power Absent
Paranormal Liberation War Arc
253. Shirakumo Absent
254. You Could Be More of a Hero than Anyone Absent
255. Hero Hopeful Absent
256. The High, Deep Blue Sky Absent
257. Pass It Forward, to Whomever Mentioned
258. Friends Absent
259. A Quiet Beginning Absent
260. Life's Work Absent
261. High-Ends Absent
262. Mirko, the No. 5 Hero Absent
263. I Wanna Be With You Guys!! Absent
264. One's Justice Absent
265. Villains and Heroes Absent
266. Happy Life Absent
267. Flames Mentioned
268. Scramble! Absent
269. The Three of Us Absent
270. Inheritance Absent
271. Dark Cloud Absent
272. Good Morning! Absent
273. The Thrill of Destruction Absent
274. Search Absent
275. Encounter, Part 2 Absent
276. You Cheated...! Absent
277. Who...? Absent
278. Disaster Walker Absent
279. League of Villains vs. U.A. Students Absent
280. Red Riot Absent
281. Plus Ultra Absent
282. Footfall of Destruction Absent
283. 75 Absent
284. Deep Blue Battle Absent
285. Katsuki Bakugo Rising Absent
286. The Ones Within Us Absent
287. Mistake Absent
288. Save Takeo!! Absent
289. Miss Candid and Miss Shut-Away Absent
290. Dabi's Dance Absent
291. Thanks For Going Strong Absent
292. Threads of Hope Absent
293. Hero-Saturated Society Absent
294. Final Performance Absent
295. Tenacious Absent
296. Hellish Hell Absent
297. Tartarus Appears
298. Sounds of Collapse Absent
299. Like Those Tragic Tales Absent
300. The Hellish Todoroki Family, Part 2 Appears
301. The Wrong Way To Put Out A Fire, Part 1 Absent
302. The Wrong Way To Put Out A Fire, Part 2 Absent
303. Top Three Absent
304. Izuku Midoriya and Toshinori Yagi Absent

Vigilantes Chapter Appearances

Stendhal Arc
9. Judgment Appears
9.5. Mask Appears
10. Scream Appears
11. Crossing Lines Appears
Osaka Incident Arc
29. Equipment Issues Fantasy
30. Cooperation Request Absent
31. Day-Tripping Down to Naniwa! Absent
32. Idols Keep Their Secrets! Absent
33. Stumbling into Nasty Business! Absent
34. Crabtastic Rampage! Absent
35. Blown-Up Hero?! See Ya Later! Absent


Chizome Prototype.png

  • In his first sketches, Stain had shorter hair, his headband was smaller, and he wore a belt with pockets on his sides. He did not have his wristbands, his neck was covered with ribbons and he carried more weapons. He also had tube equipment connected from his throat to his mouth, possibly to assist him with blood ingestion for his Quirk activation.
    • The tube equipment idea may have been reused for Himiko Toga, who utilizes similar equipment for quick blood absorption.
  • Stain's dark outfit, choice of weapons and violent ideology are most likely derived from the comic book anti-heroes of the 90s, a trend galvanized primarily by creators like Rob Liefeld and Todd McFarlane. His mainly black costume and long, flowing, tattered red scarf are particularly reminiscent of the McFarlane character Spawn.
  • Stain's design, bandanna, samurai equipment, and perhaps even his lack of a nose may have possibly been inspired by the Teenage Mutant Ninja Turtles, given that they debuted in a comic with a much darker tone than what they are known for today.
    • Interestingly, Spinner, his admirer, has a similar appearance, furthered with the green skin, reptile attributes, and wild teenage motivations.
  • Chizome's personality and premise are very similar to the Marvel anti-hero Frank Castle, aka The Punisher. Both are seasoned warriors (Chizome a vigilante, Frank a Vietnam War veteran) who resort to murder to act upon their absolutist ideals of "justice", both with a strict moral code conducting their actions that separates them from outright villainy (The Punisher only kills criminals, while Chizome only kills corrupt heroes). Chizome is also similar to Billy The Butcher, the secondary protagonist- turned final villain in the controversial comics The Boys.
  • Chizome's surname contains the kanji for "red" ( aka?) and "black" ( guro?), and his first name contains "blood" ( chi?) and "stain" ( zome?).
    • Chizome's Vigilante name, "Stendhal", is likely a reference to Marie-Henri Beyle, a 19th-century French writer who is better known by his pen name "Stendhal". His most known novel, The Red and the Black, may have also been what inspired Chizome's surname.
  • Stain's Japanese voice actor, Go Inoue, also voices Daikaku Miyagi.


  • (To Tomura) "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."[4]
  • (To Kurogiri) "Hero is a title reserved for those who perform truly great feats! Too many are undeserving... Just money worshipers playing hero! Until this society wakes up and rectifies itself... I will continue to do my work."[5]
  • (To Tenya) "Forget about yourself for a second and try saving others. Don't wield your power for your own sake. Because getting trapped by your own hate and acting out of pure self-interest... makes you the furthest thing from a hero."[6]
  • (To himself) "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..."[7]
  • (To various heroes and U.A. students) "If I don't fix it... if someone isn't... stained with blood...! If heroes aren't restored...!! Come! Just try me... you fakes! The only one allowed to kill me is... All Might, a true hero!!"[8]


  1. My Hero Academia Anime: Episode 37.
  2. My Hero Academia Manga: Chapter 57.
  3. My Hero Academia Manga: Chapter 297.
  4. My Hero Academia Manga: Chapter 49 (p. 11-12).
  5. My Hero Academia Manga: Chapter 50 (p. 7).
  6. My Hero Academia Manga: Chapter 51 (p. 13-14).
  7. My Hero Academia Manga: Chapter 55 (p. 18-19).
  8. My Hero Academia Manga: Chapter 56 (p. 6-8).

Site Navigation

*Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA unless otherwise noted.