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.
Atsuhiro Sako to U.A. students, in "A Critical Emergency Situation"

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 villain affiliated with the League of Villains and was a member of the organization's Vanguard Action Squad. A nationwide wanted thief,[1] he is seen as 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.

He later became one of the nine lieutenants of the Paranormal Liberation Front, an organization formed from the remnants of the League and the Meta Liberation Army.

Mr. Compress currently serves as a commander for the "Vanguard Action Support Regiment: Brown" along with Spinner.[2]


Atsuhiro is a tall, slim man with pale skin and brown eyes that are semicircular, and slanted a little inwards, and a notably pointed nose. He wears a combination of a mask, balaclava, and hat. Due to this, his hair has never been seen.

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 a silver walking stick with a gold handle.

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



Mr. Compress reveals his trick

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.[3] 

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. 


Overall Abilities: Mr. Compress is a genius villain who thrives in a supporting role. He can act as the brains of an operation as well as act efficiently on his own. He single-handedly captured Katsuki Bakugo and completed the Vanguard Action Squad's mission.

Compress is a self-proclaimed master of deception, escapology, and illusion. He is clever enough to use his Quirk in creative ways and controlled enough to know the limits of his own power. Mr. Compress decided against fighting U.A. students and was almost fast enough to escape from them. Before getting caught, Mr. Compress was able to evade all of Shoto Todoroki's freezing attacks.

Compress is a master of stealth and often uses his Quirk on people before they ever knew he was around. He stole Katsuki and Fumikage Tokoyami before their classmates noticed and was only caught after he revealed himself. Mr. Compress is also a skilled tactician and uses his Quirk in creative ways to fool his opponents. He made the U.A. students believe they had rescued their friends by tricking them with compressed pieces of ice.

Enhanced Speed & Reflexes: Mr. Compress is incredibly mobile and agile. He easily outpaced pursuers in the forest by jumping across the tops of trees and even evaded Shoto's Heaven-Piercing Ice Wall move. He was also fast enough to catch Overhaul off guard.

Genius-Level Intellect: Mr. Compress considers himself an expert in deception and illusion. True to his words, he was able to restrain Katsuki and Fumikage without their comrades noticing, and he was spotted only when he decided to make his presence known. He also tricked his pursuers into thinking the marbles in his pockets were those of the two boys, while those were actually dummies he had prepared while dodging Shoto’s attack.

Stealth: Mr. Compress was able to activate his Quirk, requiring physical contact, on Katsuki and Fumikage while they were in a group of five people, among which was Mezo Shoji whose Quirk grants him enhanced senses, demonstrating excellent stealth abilities. Likewise, he incapacitated Snatch by circling around and touching him while the latter was fighting Dabi. Compressing himself allows him to be carried anywhere without being detected.


Compress (Manga)

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.

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, maiming the target.[4]


2/6 D
4/6 B
5/6 A
3/6 C
Need To Make A Scene
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. This arm was provided by Giran. After becoming a PLF lieutenant, his new arm enables him to shoot out his marbles from his fingers.[5]

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 Chaos Absent
78. Whirling Chaos Absent
79. Drive It Home, Iron Fist!!! Absent
80. Establishing the Bakugo Bodyguard Brigade Debut
81. Roaring Upheavel Appears
82. What a Twist! Appears
83. Loss Absent
Hideout Raid Arc
84. From Iida 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 Absent
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. Result's 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 Absent
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 Absent
234. Sense Destruction Absent
235. Tenko Shimura: Origin Absent
236. Tenko Shimura: Origin, Part 2 Absent
237. Tomura Shigaraki: Origin Appears
238. Liberation Appears
239. Successor Absent
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. 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 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 Absent
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


  • Atsuhiro’s given name contains the kanji of "pressure" (?) and "large" (?). His surname contains 迫 (sako lit. "urge, force, imminent, spur on"?).
  • Mr. Compress' rankings in the popularity polls are as following:
    • Ranked 47th in the 3rd Popularity Poll.
    • Ranked 58th in the 4th Popularity Poll.
  • Atsuhiro's Japanese voice actor, Tsuguo Mogami, also voices the U.S.J Nomu and Hood.


  • (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."[6]


  1. My Hero Academia Official Character Book 2 Ultra Analysis.
  2. My Hero Academia Manga: Chapter 258.
  3. My Hero Academia Manga and Anime: Chapter 82 and Episode 45.
  4. My Hero Academia Manga: Chapter 160.
  5. My Hero Academia Manga: Chapter 279.
  6. My Hero Academia Manga: Chapter 81.

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