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Ha ha! How'd you like that? It's an invisible wall!
Kosei Tsuburaba

Kosei Tsuburaba ( (つぶら) () (こう) (せい) Tsuburaba Kōsei?) also known as Tsuburaba (ツブラバ Tsuburaba?)[1], is a student in Class 1-B at U.A. High School, training to become a Pro Hero.

Appearance

Kosei is a young man with short brown hair, spiked up at odd angles on his head. His eyes are oval-shaped, along with his large pupils.

His hero costume consists of a simple light blue jacket, with pale pants, a black shirt underneath, and he wears large brown boots with cylindrical shapes on the soles.

Personality

Kosei is a very enthusiastic and competitive individual who holds himself to a high standard as he makes an effort to avoid descending to the level of his rivals.

However, Kosei was not above taunting Katsuki Bakugo himself after stopping the Class 1-A student with his Quirk. Similar to Neito Monoma, Kosei has no problem settling for less rather than aiming for the top.[2]

He seems to have a subtle yet rather lecherous side, which is demonstrated in how he was mostly thinking about how Tsuyu Asui's tongue was wrapped around him when he was captured.

Abilities

Quirk

Solid Air ( (くう) () (ぎょう) () Kūkigyōko?): Kosei's Quirk allows him to solidify any air he breathes out, allowing him to create invisible walls and/or platforms. The solidified air continues to stay afloat in midair, even if someone is standing on it. The size of the wall or platform depends on his lung capacity.

Initially, these walls and platforms were not very strong, as Katsuki was able to break an air wall as if it were made out of glass using only his bare fist, uninjured. Later on, he improved his Quirk and his air walls were strong enough that it required hitting them with metal pipes repeatedly to break them.

The solidified air is also became soundproof later on (Air Prison), restricting communication and making it effective against Quirks that rely on sound, such as Anivoice or Brainwashing.

Super Moves

  • Air Prison (エアプリズン Ea Purizun?): Kosei refined his Quirk since the Forest Training Camp Arc, and is able to send out squares of air, and shape them into a box to imprison his opponent. The fact that Koji Koda was imprisoned there for a while and Jurota Shishida had problems containing Koji's strength shows that these air prisons are much more durable than solid air he has shown previously. He displays this ability in the first round of the Class 1-A vs. Class 1-B training event.

Stats

Power
 
2/6 D
Speed
 
3/6 C
Technique
 
5/6 A+
Intelligence
 
4/6 B
Got Your Back
 
5/6 A+
Kosei's stats, according to the Ultra Analysis Book

Battles & Events

Battles & Events


Chapter Appearances

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 Debut
27. Earth-Shatteringly Fateful Negotiations Appears
28. Strats, Strats, Strats Appears
29. Unaware Appears
30. Cavalry-Match Finale Appears
31. The Boy Born with Everything Absent
32. Smile, Prince of Nonsense Land! Appears
33. Shinso's Situation Absent
34. Victory or Defeat Absent
35. Battle On, Challengers! Absent
36. Bakugo vs. Uraraka Appears
37. Midoriya and Endeavor Absent
38. Todoroki vs. Midoriya Absent
39. Shoto Todoroki: Origin Absent
40. Emancipation Absent
41. Fight On, Ida Absent
42. Final-Match Time Absent
43. Todoroki vs. Bakugo Absent
44. Relaxing Day Off Absent
Forest Training Camp Arc
70. Wild, Wild, Pussycats Appears
71. Kota Absent
72. Day Two Appears
73. Good Evening Absent
74. Smoke Signal Absent
75. Stake Your Life, Hero! Appears
76. My Hero Absent
77. It's Okay Appears
78. Whirling Chaos Appears
79. Drive It Home, Iron Fist!!! Appears
80. Establishing the Bakugo Bodyguard Brigade Appears
81. Roaring Upheaval Appears
82. What a Twist! Absent
83. Loss Appears
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. Results' Aftermath Absent
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 Appears
Joint Training Arc
194. Cold Skies over U.A. High! Absent
195. Clash! Class A vs. Class B! Appears
196. Make It Happen, Shinso!! Appears
197. Quaotic Quirkstravaganza Appears
198. Know Where You Stand when It Counts!! Appears
199. Operation New Improv Moves! Absent
200. Clever Commander! Absent
201. Foresight Absent
202. Match 3 Absent
203. Flexible! Juzo Honenuki! Absent
204. Tuning Up Absent
205. Detour Absent
206. Match 3 Conclusion Absent
207. Early Bird! Absent
208. Match 4 Conclusion Absent
209. Match 5 Start Flashback
210. The One For All Dream Absent
211. That Which Is Inherited Appears
212. That Which Is Inherited, Part 2 Absent
213. Realm of Souls Absent
214. Our Brawl Appears
215. Final Face-Off! Midoriya vs. Shinso! Absent
216. Class A vs. Class B: Conclusion! Appears
217. The New Power and All For One 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 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
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 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 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 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, Part 3 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 Flashback
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 Absent
298. Sounds of Collapse Absent
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

Anime Appearances

Appearances
Season 2
14. That's the Idea, Ochaco Absent
15. Roaring Sports Festival Absent
16. In Their Own Quirky Ways Debut
17. Strategy, Strategy, Strategy Appears
18. Cavalry Battle Finale Appears
19. The Boy Born with Everything Appears
20. Victory or Defeat Absent
21. Battle on, Challengers! Appears
22. Bakugo vs. Uraraka Appears
23. Shoto Todoroki: Origin Absent
24. Fight on, Ida Absent
25. Todoroki vs. Bakugo Absent
26. Time to Pick Some Names Absent
27. Bizarre! Gran Torino Appears Absent
28. Midoriya and Shigaraki Absent
29. Hero Killer: Stain vs U.A. Students Absent
30. Climax Absent
31. The Aftermath of Hero Killer: Stain Absent
32. Everyone's Internships Absent
33. Listen Up!! A Tale from the Past Absent
34. Gear up for Final Exams Absent
35. Yaoyorozu: Rising Absent
36. Stripping the Varnish Absent
37. Katsuki Bakugo: Origin Absent
38. Encounter Absent
Season 3
39. Game Start Absent
40. Wild, Wild Pussycats Absent
41. Kota Appears
42. My Hero Appears
43. Drive It Home, Iron Fist!!! Appears
44. Roaring Upheaval Appears
45. What a Twist! Appears
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 Flashback
52. Create Those Ultimate Moves Absent
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 Absent
61. Deku vs. Kacchan, Part 2 Absent
62. A Season for Encounters Appears
63. Unrivaled Absent
Season 5
89. All Hands on Deck! Class 1-A Absent
90. Vestiges Absent
91. Clash! Class A vs. Class B! Appears
92. Make It Happen, Shinso! Appears
93. Operation New Improv Moves Appears
94. Foresight Absent
95. Match 3 Appears
96. Match 3 Conclusion Appears
97. Early Bird! Appears
98. That Which Is Inherited Absent
99. Our Brawl Appears
100. The New Power and All For One Appears
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

Trivia

  • Kosei's surname contains the kanji for "yen, circle" ( tsubura?) and "place" ( ba?), and his first name contains "hardness" ( ?) and "formation, to become" ( sei?).
  • Kosei is the only character in the main series so far to receive more than one volume character profile.
  • Kosei likes ball games.[3]
  • Kosei likes any kind of live-action television that features superheroes and makes considerable use of special effects.[1]
  • Kosei's first English voice actor, Aaron Dismuke, also voices Tamaki Amajiki. His second English voice actor, Nazeeh Tarsha, also voices Elecplant and Daigo.

Quotes

References

  1. 1.0 1.1 My Hero Academia Manga: Vol. 23, Omake
  2. My Hero Academia Manga and Anime: Chapter 30 and Episode 18.
  3. My Hero Academia Manga: Vol. 10, Omake

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