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I'll have to beat this lesson into you. Acting with class befitting one's institution... that is the meaning of dignity.
Seiji Shishikura to Katsuki Bakugo and Denki Kaminari in "Denki Kaminari's Thoughts"

Seiji Shishikura ( (しし) (くら) (せい) () Shishikura Seiji?), also known as Shishikross (シシクロス Shishikurosu?),[1] is a second-year student at Shiketsu High School training to become a Pro Hero.


Seiji is a young man of fairly average height with thin, slanted eyes with tiny black pupils and a straight purple fringe, parted on his right so it covers his left eye. Around the back of his head, his hair is fluffier, sticking out in small tufts.

In his school uniform, Seiji wears the same white collared shirt and dark pants as all Shiketsu High students. He also sports Shiketsu's signature hat whether he be in uniform or in his hero costume.

His hero costume consists of a black overcoat with red trimmings. Its collar covers his entire neck, only stopping just below his mouth, and two red-rimmed flaps are folded over the top. The sleeves of his coat reach down to his elbows, cut off by two large red cuffs which are strapped onto the upper part of the sleeves, and on his right, he wears a smaller white armband with a black stripe through the middle. On top of his coat, he wears a black apron that reaches down past his knees, plain apart from the red strings threaded twice through that go around his neck. He also wears a peculiar set of gloves that only cover his thumb, index and middle fingers, and black boots.



Seiji is a proud and dignified individual who values Shiketsu's teachings about obligation and dignity above all else. He often stands with his arms behind his back and uses eloquent language when speaking, which causes people to refer to him as "Senpai".

Seiji believes all heroes should be dignified and vulgar individuals are unworthy of becoming heroes. He believes this so strongly that he prioritized incapacitating unworthy students during the hero licensing exam over actually trying to pass the exam himself. He can be quite critical, making snap judgements of other people without really getting to know them.

Seiji refusing to admit he's been influenced by Stain.

Seiji has a lot of respect for U.A. High School but believes that the students of Class 1-A sully its image because they lack dignity. He dislikes Katsuki Bakugo especially and lectured him several times during their fight about how Katsuki needs to reflect on how he represents U.A. High with his actions.[2] He is also quite obviously insecure about his small eyes. When Katsuki taunted him about it, he got angry and said his eyes were big and handsome.[3]

Seiji considers himself to be worthy of being a hero and often fails to see his own faults and has trouble reflecting on his own actions. He has clearly been influenced by Stain to reform the hero position, but he refuses to admit being influenced by a villain. A Shiketsu teacher and Nagamasa Mora believe Seiji has a tendency of imposing his values on others and has been impacted negatively by the Hero Killer. This shortcoming is what ultimately caused Seiji to fail the hero licensing exam. Even so, Seiji remained mostly unfazed and still refused to reflect on himself.[4]


Seiji easily overpowers Eijiro Kirishima and transforms him into a ball of flesh.

Overall Abilities: Seiji is a very formidable combatant, showcased by his position at Shiketsu High School and his ability to fight on par with Katsuki Bakugo, Eijiro Kirishima, and Denki Kaminari all at once. Seiji has the respect of his fellow students, all of whom are students at the prestigious Shiketsu, which is believed to be the best hero school in western Japan.

Seiji was not only capable of singlehandedly defeating several students at the Provisional Hero License Exam, but he was able to outwit and overpower Katsuki and Eijiro, two of Class 1-A's most formidable students, prior to the pair being rescued by Denki. It took the combined efforts of three U.A. students to bring Seiji down.


Meatball ( (せい) (にく) Seiniku?): Seiji's Quirk gives him the ability to manipulate raw flesh. He can knead other people's bodies into disfigured balls of flesh, leaving them incapacitated. His own flesh is more versatile; it can be detached, expanded, and remotely controlled for offensive and defensive purposes.


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

Battles & Events

Battles & Events

Chapter Appearances

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 Debut
103. The Test Absent
104. White-Hot Battle! To Each Their Own Strengths! Flashback
105. Shiketsu High Lurking Absent
106. Class 1-A Appears
107. Denki Kaminari's Thoughts Appears
108. RUSH! Mentioned
109. Rescue Exercise Pictured
110. Rescue Exercise Continued Appears
111. Smoldering Start Absent
112. What's the Big Idea? Absent
113. Test's Aftermath Appears
114. Results' Aftermath Mentioned
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 Absent
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 Flashback
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
Remedial Course Arc
163. Smoldering Flames Appears
164. Masegaki Appears
165. Win Those Kids' Hearts Appears
166. Be Proud, License Trainees Appears
167. Number One Hero's Starting Line Appears
168. The Strange Tale of Aoyama Absent
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 Absent
246. Message Appears
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
Tartarus Escapees Arc
307. Been a While!! Absent
308. Full Power!! Absent
309. Can't Be a Child Anymore Absent
310. Masters and Pupil Absent
311. Here We Go!! Absent
312. Hired Gun Absent
313. High-Speed Long-Range Mobile Cannon Absent
314. The Lovely Lady Nagant Absent
315. Platitudes Absent
316. Your Turn Absent
317. Scars, Blood, Filth Absent
318. Reckless Absent
319. Friend Absent
320. Deku vs. Class A Absent
321. From Class A to One For All Absent
322. Great Explosion Murder God Dynamight Absent
323. That Single Step Flashback
324. A Young Woman's Declaration Absent
325. The Bonds of One For All Absent
326. Who Are You Really? Absent
327. Rest!! Absent
328. No Man Is an Island 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 Absent
45. What a Twist! Absent
46. From Ida to Midoriya Absent
47. All For One Absent
48. Symbol of Peace Absent
49. One For All Absent
50. End of the Beginning, Beginning of the End Absent
51. Moving into Dorms Absent
52. Create Those Ultimate Moves Absent
53. The Test Debut
54. Shiketsu High Lurking Absent
55. Class 1-A Appears
56. RUSH! Appears
57. Rescue Exercises Appears
58. Special Episode: Save the World with Love! Absent
59. What's the Big Idea? Absent
60. A Talk about Your Quirk Absent
61. Deku vs. Kacchan, Part 2 Absent
62. A Season for Encounters Absent
63. Unrivaled Absent
Season 4
64. The Scoop on U.A. Class 1-A Absent
65. Overhaul Absent
66. Boy Meets... Absent
67. Fighting Fate Absent
68. Let's Go, Gutsy Red Riot Absent
69. An Unpleasant Talk Absent
70. GO!! Absent
71. Suneater of the Big Three Absent
72. Red Riot Absent
73. Temp Squad Absent
74. Lemillion Absent
75. Unforeseen Hope Absent
76. Infinite 100% Absent
77. Bright Future Absent
78. Smoldering Flames Appears
79. Win Those Kids' Hearts Appears
80. Relief for License Trainees Appears
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 Absent
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 Absent
109. Revival Party Absent
110. Sad Man's Parade Absent
111. Tenko Shimura: Origin Absent
112. Tomura Shigaraki: Origin Absent
113. The High, Deep Blue Sky Absent


  • Seiji's surname contains the kanji for "meat, flesh" ( shishi?) and "storehouse" ( kura?), and his first name contains "refined" ( sei?) and "child" ( ji?).
  • With a little change in reading of kanji, his name can also be read as "meat, sausage" in Japanese: "肉 ソーセージ (肉 niku/ 倉 sou + 精 sei + 児 ji)"
  • According to Seiji's Volume 12 profile:
    • His favorite thing are vegetables.
    • Horikoshi has become very fond of Seiji and his Quirk, even stating that he'd love to create a heart-warming and comedic story revolving around his everyday life.
  • Seiji's father is employed at Tartarus. The usage of commissar caps by the Tartarus' guards was a deciding factor for Seiji to enroll at Shiketsu High School, since they provided similar fashion to their students.[1]
  • Seiji's English voice actor, Stephen Fu, also voices Yoichi Shigaraki.


  • (To Katsuki Bakugo and Denki Kaminari) "I'll have to beat this lesson into you. Acting with class befitting one's institution... that is the meaning of dignity."[5]


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 My Hero Academia: Ultra Analysis: The Official Character Guide (p. 142-143).
  2. My Hero Academia Manga and Anime: Chapter 107 and Episode 56.
  3. My Hero Academia Manga and Anime: Chapter 106 and Episode 55.
  4. My Hero Academia Manga and Anime: Chapter 110 and Episode 57.
  5. My Hero Academia Manga: Chapter 107 (p. 2).

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