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My Hero Academia Wiki

I am Harima's great great grandson! The bandit king's blood flows through me! What's that, you say? You barely noticed me?! All part of the act! It's all for that ta-da moment that the true trick is saved till the end. Voila! The curtain rises on the first and final escape artist performance of Mr. Compress!!
Atsuhiro Sako in "Final Performance"

Atsuhiro Sako ( (さこ) (あつ) (ひろ) Sako Atsuhiro?), also known as Mr. Compress (Mr. (ミスター) コンプレス Misutā Konpuresu?), is a recurring villain affiliated with the League of Villains, was a member of the organization's Vanguard Action Squad, and later became one of the nine lieutenants of the Paranormal Liberation Front.[2]

He followed in the footsteps of the Peerless Thief, who was his great great grandfather[3] and became a nationwide wanted thief,[4] being one of the more 'experienced' members of the League. He and the rest of his team serve as the main antagonists of the Forest Training Camp Arc and Paranormal Liberation War Arc. He was arrested after his defeat during the Paranormal Liberation War.[5]


Atsuhiro is a tall, slim man with pale skin and brown eyes that are semicircular and slightly slanted inwards, and he has a notably pointed nose. He wears a combination of a mask, balaclava, and hat. Underneath his mask reveals that he has short black eyebrows, and a head of curly brown hair, of similar shade to his eyes.

In his villain attire, he wears a dark orange shirt, the collar left upturned and a green striped bolo necktie with an oval-shaped azure brooch hanging around his neck, a black waistcoat and black dress pants. He wears knee-high white boots with wedged heels and black toe-caps, plain dark red gloves and a tall brown top hat, a red ribbon tied around it and a pale feather sticking out, on the left side.

Over his head, he wears a black balaclava with a hole for his mouth as well as his eyes, over which he wears one of multiple white masks he owns, each with a different black geometric design. In his first appearance, he also wears a dark yellow, double-breasted overcoat with buttoned shoulder tabs and a high collar, which reaches below his knees, and he additionally carries a silver walking stick with a gold handle.

After Overhaul destroys his left arm, Giran gives him a replacement prosthetic which he wears from then on.

During the Paranormal Liberation War, Atsuhiro uses his Quirk on his lower back in an attempt to escape Best Jeanist, thus permanently maiming himself.[3]



Mr. Compress boasting his trickery.

Mr. Compress is a showman at heart who likes to command every event he's a part of and be as flashy and entertaining as possible. He is talkative, humorous and arrogant with his allies and enemies alike.

Mr. Compress has a habit of monologuing and showing off his entertainer skills. This has proven to be a flaw in his skills as a villain; he allowed the Bakugo Escort Squad to catch him because he spent so much time taunting them. Mr. Compress also nearly lost possession of Katsuki Bakugo after taking a moment to bow after his victory.[6]

Mr. Compress is often the voice of reason among the League of Villains and appears to care for his comrades; he acts as a mentor to the younger members and often keeps them in check. After Magne's death, he immediately leaps into action and tried to subdue Overhaul by himself. This action cost him his arm, but Compress is quick to get his revenge by destroying Overhaul's arm later on.

Though little of his past or motives were shown, it's revealed that Atsuhiro is the great-great-grandson of Oji Harima, who stole from wealthy heroes and gave that wealth to the people. Atsuhiro joined the League of Villains in order to fight against such a corrupt system and wealthy heroes, exposing the perceived injustices of hero society.


Atsuhiro demonstrates his creative Quirk handling.

Overall Abilities: Atsuhiro is very capable and resourceful villain, with incredible stealth abilities, coupled with speed, agility, and the proficiency with his Compress Quirk. It is primarily useful when it comes to setting traps. If Atsuhiro has marbles containing certain compressed objects, he can use those as a way to obstruct the path of enemies, by throwing said marbles in his adversaries' direction and returning the objects to their original size. Thanks to Atsuhiro's creativity and ingenuity, he is able to take advantage of the deactivation property of his Quirk to affect the environment around him, like placing a marble holding a compressed large rock below a car, and then launch the vehicle into mid-air through the marble's decompression process. In another offensive manner, Atsuhiro uses his Quirk to selectively compress only one part of a person's body, severely maiming, or sometimes, killing them. Compress also works as a way to dig through solid objects, making Atsuhiro pivotal for escaping and infiltrating enclosed areas. Using Compress on himself allows Atsuhiro to be carried anywhere, undetected. He often uses his Quirk to capture people within compressed marbles without being noticed, and before the victim can alert nearby allies.

During the Vanguard Action Squad Invasion, Atsuhiro demonstrated his espionage efficacy by using his Quirk, which requires physical contact, on Katsuki and Fumikage Tokoyami while the pair were in a group of 5 people, which included Mezo Shoji, whose Dupli-Arms Quirk grants the latter enhanced senses. Overall, Atsuhiro single-handedly captured the former two students before their classmates noticed, and was only caught when the masked villain made his presence known. Succeeding in the Vanguard Action Squad's mission and making his escape, Atsuhiro easily outpaced the U.A. pursuers in The Beast's Forest by jumping across the treetops and even evaded Shoto Todoroki's multiple employments of his "Heaven-Piercing Ice Wall" technique. While he did elude the trailing students, Atsuhiro was taken by surprise when Mezo, Shoto, and a battle-worn Izuku Midoriya crashed him into the ground. In the course of the Kamino Incident, Atsuhiro, along with Himiko Toga and Twice, forced Katsuki on the defensive, before he was rescued by his classmates. With Magne's help, Atsuhiro was nearly successful at recapturing Katsuki, only to be intercepted by Mt. Lady, who knocked out the airborne villain.

When the League of Villains encountered Overhaul, who had killed Magne during the exchange, Atsuhiro was fast enough to catch him off-guard, and made an attempt at capturing the yakuza leader. Unfortunately, the hat-wearer's efforts were wasted because he was struck by an experimental Quirk-Destroying Bullet, temporarily erasing Atsuhiro's Quirk, and leading to his left arm being destroyed by Overhaul. Much later, Atsuhiro incapacitated Snatch, by circling around and touching the sand hero, while the latter was fighting Dabi. By compressing the flame-engulfed Pro Hero, the two villains effectively defeated and killed Snatch. At the Revival Celebration, Atsuhiro faced various members of the Meta Liberation Army, but began to struggle until he was saved by Twice's "Sad Man's Parade" technique. After the Revival Celebration, Atsuhiro became a lieutenant of the now unified Paranormal Liberation Front.

In the climax of the Paranormal Liberation War, Atsuhiro was forced to maim his hindquarter in order to escape from Best Jeanist's fiber bindings, before proceeding to briskly free Tomura Shigaraki, Spinner, and Skeptic from their own restraints as well. As he did so, Atsuhiro destroyed more of his body, as his clothes that were being manipulated by Best Jeanist, all to avoid being restrained again. Successful at releasing his bonded allies and securing Dabi, Atsuhiro admitted his efforts were his last, and was ultimately defeated by Mirio Togata.

  • Enhanced Agility: Atsuhiro possesses an above-average amount of agility. Primarily, Astuhiro displayed the ability to effortlessly shift from one motion to another, effectively dodge attacks, and rapidly leap across high ledges and through forest canopies, all while performing other numerous athletic feats with minimal effort. His most notable forms of legerity stems from his Quirk application, being able to swiftly compress targets into small marble-like objects without the opposition's knowledge. At the Paranormal Liberation War's climax, Atsuhiro swiftly bounded across the gargantuan Gigantomachia's back spikes in order to to reach a constrained Skeptic.

Keen Intellect: Atsuhiro is an ingenious villain who thrives in a supporting role. He can act as the brains of an operation as well as act efficiently on his own. Being a former stage magician, Atsuhiro is a self-proclaimed master of deception, escapology, and illusion. True to his words, Atsuhiro employs many creative tactics in combination with his Compress Quirk in order to mislead his opponents. A key example of this misdirection is when he compresses a target into a marble and is prepared to be relived of them by his opponents. Exceptionally cautious with his captives, Atsuhiro utilizes his illusionist skills to clandestinely create decoy marbles and swap them around with the ones holding the actual targets, thus deceiving anybody who attempts to steal from him. Atsuhiro also has good judgment, as he knows the limits of his own abilities, and can gauge the level of strength another person possesses after seeing them in action once. He decided against fighting hero candidates from U.A. High School, so he instead made a hasty retreat.

When the Bakugo Escort Squad caught up to him, and seemed successful at reclaiming the captured Katsuki and Fumikage, Atsuhiro flawlessly tricked his pursuers into thinking the marbles in his pockets were the ones housing Katsuki and Fumikage. In reality, those were actually decoys containing ice he had discreetly compressed while dodging Shoto’s cryokinetic assault, and Atsuhiro kept the original marbles in his mouth. Once the Hideout Raid Team appeared at the villains' bar, Atsuhiro realized that the televised press conference was being used a ruse for the team of heroes to get the drop on the League of Villains. During the Revival Celebration, Twice attempted to make clones of Dabi and Atsuhiro, but the latter villain refuted the notion, pointing out that if all of the M.L.A members and Deika City are destroyed, then the League of Villains won't have the fodder necessary to hold off Gigantomachia once the behemoth arrives in the metropolis. When the Paranormal Liberation War approached its end, Atsuhiro took notice of the Near High-Ends in the distance and deduced Tomura can relay orders to the Nomu upon regaining consciousness. But due to Tomura fading in and out of consciousness, Atsuhiro had to get him properly roused so the body-enhanced villain can effectively command the Nomus.

  • Escape Artistry: Atsuhiro is an escape artist that has been trained by his family to deduct the necessary means for escape. This can be seen by how he recognized and devised multiple ways to escape using his Quirk: compressing himself from under his opponent, using misdirection, digging safely from underground to the surface, or concocting methods for him and/or his allies to escape from constraints.


Mr. Compress using his Quirk on an unconscious Dabi.

Compress ( (あっ) (しゅく) Asshuku?): Atsuhiro's Quirk allows him to "compress" anything in a spherical area around his arm into a small, marble-like object without actually damaging it. He can only compress his target if he is touching it.

The weight of the target is reduced alongside them, making them very easy to carry. If used on a person, it effectively entraps them, terminating the fight instantly and allowing Mr. Compress to abduct them without difficulty.

The Quirk can also be used on select body parts, quickly and efficiently maiming the target.[7] It is implied that mutilating a body part through Compress is painless, as Atsuhiro used it to remove one of Kai Chisaki’s arms as well as maim his own lower body; neither of them seemed to be in deep pain during the process.

He can also use his Quirk to compress himself into a marble, as seen during the Vanguard Action Squad Invasion.

Atsuhiro's Quirk Factor lies within his arms, and after losing his left arm to Overhaul, Compress' activation is now limited to Atsuhiro's right arm.


2/6 D
4/6 B
5/6 A
3/6 C
5/6 A
Atsuhiro's stats, according to the Ultra Analysis Book


Prosthetic Arm: After losing his left arm to Overhaul, Atsuhiro wears a functional robotic arm as a replacement that was provided by Giran. It eventually began to succumb to wear and tear and its hand was broken off after being flung away by Gigantomachia. After becoming a Paranormal Liberation Front lieutenant, he received a replacement prosthetic that enables him to shoot out his marbles from his fingers.[8]

Battles & Events

Battles & Events

Chapter Appearances

Forest Training Camp Arc
70. Wild, Wild, Pussycats Absent
71. Kota Absent
72. Day Two Absent
73. Good Evening Absent
74. Smoke Signal Absent
75. Stake Your Life, Hero! Absent
76. My Hero Absent
77. It's Okay Absent
78. Whirling Chaos Absent
79. Drive It Home, Iron Fist!!! Absent
80. Establishing the Bakugo Bodyguard Brigade Debut
81. Roaring Upheaval Appears
82. What a Twist! Appears
83. Loss Absent
Hideout Raid Arc
84. From Ida to Midoriya Absent
85. Nothing but Fools Appears
86. Before the Storm Appears
87. Clash Appears
88. All For One Appears
89. All for a Certain One Appears
90. Reach Out Appears
91. Symbol of Peace Appears
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
Provisional Hero License Exam Arc
98. Moving into Dorms Absent
99. Goodbye Two-Digit Chapters, Hello Three Digits Absent
100. Creating Ultimate Moves Flashback
101. The Girl Called Mei Hatsume Absent
102. On Cloud Nine Absent
103. The Test Absent
104. White-Hot Battle! To Each Their Own Strengths! Absent
105. Shiketsu High Lurking Absent
106. Class 1-A Absent
107. Denki Kaminari's Thoughts Absent
108. RUSH! Absent
109. Rescue Exercise Absent
110. Rescue Exercise Continued Absent
111. Smoldering Start Absent
112. What's the Big Idea? Absent
113. Test's Aftermath Absent
114. Results' Aftermath Appears
115. Unleashed Absent
116. Meeting in Tartarus Absent
117. A Talk About Your Quirk Absent
118. Meaningless Battle Absent
119. Deku vs. Kacchan, Part 2 Absent
120. The Three Absent
121. Second Semester Opening Ceremony Absent
Shie Hassaikai Arc
122. A Season for Encounters Absent
123. Unrivaled Absent
124. Trouble Ahead!! Episode: Work Studies Absent
125. Overhaul Appears
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 Mentioned
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 Flashback
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 Clone
157. Infinite 100 Percent Absent
158. Chisaki's Warped Compassion Clone
159. It's Over!! Appears
160. Expressway Appears
161. Bright Future Absent
162. Suitable One Absent
Meta Liberation Army Arc
218. The Meta Liberation Army Absent
219. Go, Slidin' Go! Appears
220. My Villain Academia Appears
221. Memento from All For One Appears
222. Tomura Shigaraki: Distortion Appears
223. Cockroaches Appears
224. Revival Party Appears
225. Interview with a Vampire Appears
226. Bloody Love Absent
227. Sleepy Appears
228. Wounded Soul Appears
229. All It Takes Is One Bad Day Absent
230. Sad Man's Parade Appears
231. Path Absent
232. Meta Abilities and Quirks Clone
233. Bright Future Flashback
234. Destruction Sense Absent
235. Tenko Shimura: Origin Absent
236. Tenko Shimura: Origin, Part 2 Absent
237. Tomura Shigaraki: Origin Appears
238. Liberation Appears
239. Successor Flashback
240. Power Appears
Endeavor Agency Arc
241. Do That Interview! Absent
242. Have a Merry Christmas! Absent
243. Off to Endeavor's Agency! Absent
244. Recommended Reading Absent
245. Rise to Action Appears
246. Message Absent
247. Status Report! Absent
248. One Thing at a Time Absent
249. The Hellish Todoroki Family Absent
250. Ending Absent
251. Just One Week Absent
252. The Unforgiven Absent
Paranormal Liberation War Arc
253. Shirakumo Absent
254. More of a Hero than Anyone Absent
255. Hero Hopeful Absent
256. The High, Deep Blue Sky Absent
257. Pass It Forward, to Whomever Absent
258. Friends Fantasy
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!! Appears
264. One's Justice Flashback
265. Villains and Heroes Clone
266. Happy Life Appears
267. Flames Absent
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 Appears
274. Search Absent
275. Encounter, Part 2 Flashback
276. You Cheated...! Absent
277. Who...? Appears
278. Disaster Walker Appears
279. League of Villains vs. U.A. Students Appears
280. Red Riot, Part 3 Appears
281. Plus Ultra Absent
282. Footfall of Destruction Absent
283. 75 Appears
284. Deep Blue Battle Absent
285. Katsuki Bakugo Rising Absent
286. The Ones Within Us Absent
287. Mistake Appears
288. Save Takeo!! Appears
289. Miss Candid and Miss Shut-Away Absent
290. Dabi's Dance Appears
291. Thanks For Going Strong Appears
292. Threads of Hope Appears
293. Hero-Saturated Society Appears
294. Final Performance Appears
295. Tenacious Appears
296. Hellish Hell Appears
297. Tartarus Absent
298. Sounds of Collapse Flashback
299. Like Those Tragic Tales Absent
300. The Hellish Todoroki Family, Part 2 Absent
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
305. Izuku Midoriya and Tomura Shigaraki Absent
306. The Final Act Begins Absent
Star and Stripe Arc
329. In the Nick of Time, a Big-Time Maverick from the West! Fantasy
330. Me and Myself Absent
331. United States of America Absent
332. State-of-the-Art Hypersonic Intercontinental Cruise... Absent
333. Specter Absent
334. Parting Gift Absent
U.A. Traitor Arc
335. Zygotes Absent
336. Villain Absent
337. A Disposable Life Flashback
338. The Story of How We All Became Heroes, Part 1 Absent
339. The Story of How We All Became Heroes, Part 2 Absent
340. The Story of How We All Became Heroes, Part 3 Absent
341. The Story of How We All Became Heroes, Part Minus 1 Absent
342. The Extreme Quiet Before the Storm Absent

Anime Appearances

Season 3
39. Game Start Absent
40. Wild, Wild Pussycats Absent
41. Kota Absent
42. My Hero Absent
43. Drive It Home, Iron Fist!!! Absent
44. Roaring Upheaval Debut
45. What a Twist! Appears
46. From Ida to Midoriya Appears
47. All For One Appears
48. Symbol of Peace Appears
49. One For All Absent
50. End of the Beginning, Beginning of the End Appears
51. Moving into Dorms Absent
52. Create Those Ultimate Moves Flashback
53. The Test Absent
54. Shiketsu High Lurking Absent
55. Class 1-A Absent
56. RUSH! Absent
57. Rescue Exercises Absent
58. Special Episode: Save the World with Love! Absent
59. What's the Big Idea? Absent
60. A Talk about Your Quirk Appears
61. Deku vs. Kacchan, Part 2 Absent
62. A Season for Encounters Absent
63. Unrivaled Appears
Season 4
64. The Scoop on U.A. Class 1-A Absent
65. Overhaul Appears
66. Boy Meets... Absent
67. Fighting Fate Absent
68. Let's Go, Gutsy Red Riot Flashback
69. An Unpleasant Talk Absent
70. GO!! Fantasy
71. Suneater of the Big Three Absent
72. Red Riot Absent
73. Temp Squad Flashback
74. Lemillion Absent
75. Unforeseen Hope Fantasy
76. Infinite 100% Clone
77. Bright Future Appears
78. Smoldering Flames Absent
79. Win Those Kids' Hearts Absent
80. Relief for License Trainees Absent
81. School Festival Absent
82. Prepping for the School Festival Is the Funnest Part Absent
83. Gold Tips Imperial Absent
84. Deku vs. Gentle Criminal Absent
85. School Festival Start!! Absent
86. Let It Flow! School Festival! Absent
87. Japanese Hero Billboard Chart Absent
88. His Start Absent
Season 5
89. All Hands on Deck! Class 1-A Absent
90. Vestiges Absent
91. Clash! Class A vs. Class B! Absent
92. Make It Happen, Shinso! Absent
93. Operation New Improv Moves Absent
94. Foresight Absent
95. Match 3 Absent
96. Match 3 Conclusion Absent
97. Early Bird! Absent
98. That Which Is Inherited Fantasy
99. Our Brawl Absent
100. The New Power and All For One Absent
101. Have a Merry Christmas! Absent
102. Off to Endeavor's Agency! Absent
103. One Thing at a Time Appears
104. Long Time No See, Selkie Absent
105. The Hellish Todoroki Family Absent
106. The Unforgiven Absent
107. More of a Hero Than Anyone Absent
108. My Villain Academia Appears
109. Revival Party Appears
110. Sad Man's Parade Appears
111. Tenko Shimura: Origin Flashback
112. Tomura Shigaraki: Origin Appears
113. The High, Deep Blue Sky Appears


  • Atsuhiro's given name contains the kanji for "pressure" ( atsu?) and "large" ( hiro?). The kanji used in his surname means "urge/force" or "imminent" ( sako?).
  • Atsuhiro likes magic.[9]
  • Atsuhiro's rankings in the Popularity Polls are as following:
    • Ranked 47th in the third Popularity Poll.
    • Ranked 58th in the fourth Popularity Poll.
    • Ranked 42nd in the fifth Popularity Poll.
    • Ranked 26th in the Seventh Popularity Poll
  • Atsuhiro's Japanese voice actor, Tsuguo Mogami, also voices the U.S.J. Nomu and Hood.
  • Atsuhiro is one of the few people who are revealed to be descendants of one of the three most infamous villains: All For One, Destro, and Oji Harima. In Atsuhiro's case, he is the great-great-grandson of Oji.
  • Atsuhiro shares his birthday with Minoru Mineta.


  • (To several U.A. students) "We're just a bit fanatical when it comes to our values. All we wish is to show him that there are other ways. Because you kids today... you have your values chosen for you."[10]
  • (To Kai Chisaki) "For the arm."[11]
  • (To Dabi) "I believe Twice was... killed. Alas, I tried but failed to stop her. Even though jumping into the fray was tantamount to suicide. I've never seen little Toga lose her cool like this."[12]
  • (To himself) "Harima... The reformation that you could not achieve I now hand off to my boss. The Paranormal Liberation Front's... No, the League of Villains' Shigaraki will change the world in my stead."[3]


  1. My Hero Academia Manga: Vol. 30, Omake
  2. My Hero Academia Manga: Chapter 258.
  3. 3.0 3.1 3.2 My Hero Academia Manga: Chapter 294.
  4. My Hero Academia: Ultra Analysis: The Official Character Guide.
  5. My Hero Academia Manga: Chapter 296.
  6. My Hero Academia Manga and Anime: Chapter 82 and Episode 45.
  7. My Hero Academia Manga and Anime: Chapter 160 and Episode 77.
  8. My Hero Academia Manga: Chapter 279.
  9. My Hero Academia Manga: Vol. 30.
  10. My Hero Academia Manga: Chapter 81.
  11. My Hero Academia Anime: Episode 77.
  12. My Hero Academia Manga: Chapter 273.

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