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Take me to the Boss!! He's all I've got left! I gotta... tell him I'm sorry!!
Kai Chisaki in "Your Turn"

This article is about the character. For this character's Quirk, see Overhaul.

Kai Chisaki ( () (さき) (かい) Chisaki Kai?),[3] also known as Overhaul (オーバーホール Ōbāhōru?), is the former Yakuza leader of the Shie Hassaikai.[4] He served as the main antagonist of the Shie Hassaikai Arc.

He was freed from Tartarus by Lady Nagant during a riot caused by All For One in Tomura Shigaraki's body, and was arrested again by Endeavor.

Appearance[]

Kai is a pale young man of a narrow build with short, shaggy, auburn hair parted to the right. His eyes are thin, irises small and gold, with relatively long lower eyelashes and small eyebrows. He also possesses a small scar on the left side of his forehead that he acquired due to his fight with the League of Villains. He has three piercings in his left ear. He usually has his mouth covered by a plague doctor mask. However, Kai's mask is removed after his battle with Izuku, and his mouth is uncovered. Following the yakuza's defeat, he lost both arms to Mr. Compress and Tomura Shigaraki during an escort to a villain hospital.

Kai wears a black dress shirt with matching dress pants, a pale gray tie around his neck, a belt with a long, thin buckle around his waist, and three beaded lobe piercings in his left ear. Over this, he wears a dark olive-green bomber jacket with a thick purple fur collar and white lace-up sneakers with tan soles and no socks. Kai's most distinguishing features are the white surgical gloves he wears on his hands and the magenta plague mask he wears over his mouth, which is tipped and embroidered with gold.

During his imprisonment in Tartarus, Kai's hair has become a bit longer, and he has developed some stubble. He also wears a standard red-orange inmate outfit with the sleeves still attached, and his arm stumps are bandaged underneath.

After escaping from Tartarus, Lady Nagant changes Kai's inmate outfit with a long, light dress shirt and dark pants.

Gallery[]

Fusions[]

After fusing with Shin Nemoto, Kai gets two additional arms deformed with spiked claws and black parts of Shin's cape. His hair gets spikier, and his mask rips apart, seeming to be fused onto his face, which is also covered in black fabric. Shin is presumably conscious in the fused form as his mouth is used through Kai's right hand and his Quirk is in use.[5]

After fusing with Rikiya Katsukame, Kai's lower body is connected into a monstrous stone construct, protruding multiple appendages equipped with clawed hands. Kai's upper body is the same but lies within the mouth of the con, and his upper jaw has Rikiya's mask.[6]

Personality[]

Overhaul using Eri to destroy Quirks

A representation of Kai's twisted plans.

Kai is a mysophobic, antisocial sociopath obsessed with returning the world to how it was before the Quirk phenomenon. Due to a combination of an old theory claiming Quirks derived from rats and his mysophobia, Kai believes that Quirks are a plague on humanity, having infected people with "syndromes" of heroism and villainy. He looks down upon those that use their abilities for either purpose, referring to acts of heroic sacrifice or petty crime as "sicknesses".[7][8] Kai is highly determined to his ambition of eradicating Quirks, not only due to his phobias but also because such a thing would allow the Yakuza to reclaim the power they once held over society. Kai has no moral compass and an enormous ego, viewing himself as the only person in the world who's enlightened to the "true nature" of Quirks and deserving of the spot as ruler of the underworld after All For One's downfall. Despite this, Overhaul's values are noted to be paradoxical, particularly his over reliance on his own Quirk, which he happened to name himself after.[9]

As the leader of the Shie Hassaikai, Kai is usually levelheaded, thinks strategically, and, according to a conversation with Twice, seems nice at first. Whether he is acting or behaving genuinely, Kai possesses polite mannerisms and can come off as very calm and classy even to people he considers potentially troublesome, evident during his first meeting with Mirio Togata and Izuku Midoriya. If aggravated, however, he may display a powerful and visible killing intent, more fitting of his true character.

I have no Children

Kai's germaphobia causing him to break out in hives.

Kai is very germaphobic and hates anything he perceives as unsanitary, frequently remarking about the unclean appearances of certain people and locations. He refuses to be touched by others or even breathe in the same air as theirs, which is one of the reasons he wears an air-filtering plague doctor mask and forces his subordinates to do the same while around him. If blood, dirt, or some other unclean substance comes in contact with Kai's person, he will start developing hives and lose his usual composure, becoming increasingly unhinged as a result. In drastic circumstances, though, Kai will let go of his aversions to crush an enemy standing in his way, either due to pragmatism or out of sheer hatred.

Overhaul kills Eri's minder

Kai after disposing of one of his subordinates.

Kai doesn't value humans, viewing people as pawns for their utilitarian value and being willing to experiment on them to accomplish his objectives. He carries this sentiment even towards the other members of the organization to which he has dedicated himself since childhood, treating them as expendable sacrifices for his well-being and having no qualms about killing them off for the most minor mistakes. The masks worn by Kai's closest subordinates also remind him of this mindset; he doesn't view them as worthy of sharing the same air as his. Even Eri, his boss's granddaughter and the centerpiece of his operations, is not spared from this brutal way of thinking as Kai frequently shames and abuses her through threats and guilt trips, seemingly to force subservience on her mind.

Kai Chisaki remembers his debt

Kai's fierce determination to revive the Yakuza and repay his debt.

The only person Kai has ever shown genuine concern for is the former boss of the Shie Hassaikai, who rescued him from the streets at a very young age and raised him as a yakuza. Kai, to this day, still feels deeply indebted to his boss for taking him in, being adamant in returning said debt by returning the yakuza to their glory days somehow. Ironically, despite his sociopathic mindset and inhumane treatment of others, this makes his ideals about family much more personal than any other members of the organization. Aside from this, he has also shown to value Hari Kurono, his childhood friend and right-hand man, having healed his injuries and being the only one of his subordinates he does not treat as disposable.

As a young yakuza, Kai was extraordinarily ruthless and would kill anyone who didn't show the Shie Hassaikai the proper respect, constantly getting into fights with rival gangs. Kai's boss, who was growing aware of the violent, immoral path his underling was following to uphold the name of the Shie Hassaikai, attempted to sway him towards a more honorable course, but to no avail; Kai became more and more convinced that illegal, questionable dealings were the only way the yakuza could ever restore their former honor. This immorality would lead the misanthropic Kai to develop an interest in the boss's granddaughter because he considered her rewinding abilities a golden opportunity for the Shie Hassaikai, believing that he could produce a Quirk-Destroying Drug out of her cells that would give the yakuza enough power to take control of the black market.

Despite his loyalty and indebtedness to his superior, Kai could not accept his boss's refusal over the idea, attacking and leaving him comatose to work on his plan unimpeded. Kai took over the Shie Hassaikai under the twisted assumption that everything he was doing was for the sake of his boss and the organization, intending to bring his boss out of his coma after he completed his plan.

Ultimately, Kai's failure to recognize others and his obstinate nature resulted in his downfall. As noted by Tomura, even though Kai's goal was to erase Quirks and restore the yakuza to power, he hypocritically used a Quirk to achieve that plan. Despite his strong-willed attitude, he is capable of expressing genuine fear and shock, especially post-defeat, after the League of Villains took away his product and ability to use his Quirk, screaming as the reality of being unable to bring the boss out of his coma hit him.[9]

Kai agrees to apologize to Eri

A broken Kai desperate to reunite with his boss.

As seen by the time of Tartarus' mass riot and breakout, Kai's imprisonment and the comatose status of his boss have left him as a shell of his former self, being rendered to a near-catatonic state and being unresponsive to everyone, anyone, and everything around him. This refractory is seen when he had little to no reaction to the mass riot during the Tartarus prison break and later showed no response to the appearance of Tomura Shigaraki and All For One, only being able to mumble the words "Boss", in reference to his father figure. During his talk with Lady Nagant, Kai laments over having lost everything, not even wanting to exact any revenge and only cares about reuniting with his boss, mumbling about how he wants to see him again, even when close to danger.

Kai is even shown crying out of regret while begging to apologize to the boss. While he still hates Izuku (despite the latter having saved his life) and holds no remorse for his treatment of Eri, he does agree to make amends with Eri, but only so he can save his boss.

Abilities[]

Kai Chisaki uses Overhaul on Magne

Kai demonstrates his Quirk to easily destroy Magne.

Overall Abilities: Before his dismemberment, Kai was an incredibly powerful villain that garnered the attention of All For One, the most powerful villain in Japan. He is a very dangerous individual due to his Quirk, Overhaul, the handling he has on it, and his lack of remorse. While in battle, Kai quickly dissembles his targets to kill them or reshapes the terrain around him into a barrage of spikes to attack his opponents. He reshapes the ground to maneuver himself around the area and counter incoming attacks. The ability to instantly rearrange his vicinity grants Kai multiple methods of dealing with his opponents, making him a massive threat from all ranges.[3]

In the past, when he recruited Kendo Rappa, a heavily experienced brawler, into the Shie Hassaikai, Kendo proposed that Kai had to defeat him in battle to gain his servitude. But just as Kendo prepared an attack, the yakuza leader effortlessly disassembled, then reassembled Kendo. Even after Kendo becomes a member of the Eight Bullets, Kai is challenged by him five times and swiftly overhauls and defeats the brawler with each attempt, despite Kendo's prowess. This celerity implies that Kai possesses high speed and reaction time to accomplish this feat, as his Quirk requires him to touch his opponent for it to take effect.

During the Shie Hassaikai Raid, Kai and his subordinates, Hari Kurono, Shin Nemoto, and Deidoro Sakaki, were encountered by Mirio Togata, a U.A. High School student worthy of the No. 1 Hero spot, who swiftly dealt with the latter two Hassaikai Group members before facing off against Kai and Hari in another 2-on-1 fight. At the beginning of the battle, Kai evaded one of Mirio's punches, although he was left with a scratch on his face before Hari was incapacitated. Kai was left temporarily holding his own against Mirio but was soon overwhelmed by The Big 3 member's top-tier prowess, which Kai himself noted was above his abilities. However, Kai still found himself on the defensive from Mirio's fighting spirit and brute strength until he could finally use reassembled spikes to immobilize and injure Mirio to a sufficient extent.

Deku fights Overhaul's second form

Having fused with Shin Nemoto, Kai can easily repel Izuku Midoriya.

With the arrival of Izuku and Sir Nighteye, Kai was forced to merge with Shin. This transformation granted Kai increased power, heightened speed, access to Shin's Confession Quirk, and an overall monstrous appearance equipped with an additional set of arms through which the amalgamated Shie Hassaikai leader can activate his original Quirk, showcasing a higher magnitude of control of the said power.[5] Kai's inflated power allowed him to eventually overpower Sir Nighteye, critically injuring the former sidekick of All Might, and contend with Izuku, who was soon forced into raising his One For All output to 20%. After being spontaneously defused by Eri, Kai made a last-ditch effort to prevail against the heroes by fusing with Rikiya Katsukame, acquiring an even greater power and a more atrocious form. While he did engage Izuku, Kai began struggling against the hero's "Full Cowl - 100%" until he was completely outmatched and defeated.

  • Enhanced Durability: Kai has excellent durability as he was assaulted by several of Mirio's punches and could endure them and remain fully conscious despite still receiving bad injuries. This feat is impressive, as a single attack from Mirio is occasionally enough to incapacitate somebody into submission. Later, he survived punches from Izuku, who wielded One For All at 100%. Kai also showed little reaction to having his arms destroyed by the League of Villains, albeit he still despaired over losing his two limbs.
  • Enhanced Reflexes: Kai possesses quick reflexes sufficient to quickly and consistently defeat Kendo Rappa at close range, who is said to punch like a hail of bullets. Kai also displayed enough speed to dodge Mirio's attacks.
Antidote Serum for Quirk-Destroying Drug

Kai not only created the Quirk-Destroying Drug, but also an antidote for the said drug.

Genius Intellect: Kai is brilliant with inventive, strategic, and tactical wits. Following the yakuza tradition of covering the trails of their crimes, Kai cleaned up his illegal actions by disassembling his targets first, taking what he needed from them, and restoring their bodies to perfect condition in the end, thus avoiding incriminating evidence of violent assault from being left behind.[10] The most noteworthy aspect of Kai's intelligence is the Quirk-Destroying Drug he created from the DNA of Eri, whose Quirk, Rewind, can rewind a target into a previous state. Alongside the drug, Kai also developed an antidote serum, which can nullify the Quirk-neutralizing effects and restore the victim's Quirk. With these two products in his possession, Kai planned to resurrect the glory of the Shie Hassaikai, and the yakuza in general, by using the drug and the serum as a way to accumulate considerable financial resources, as well as a tool to induce fear into the modern Quirk-dependent population. The drug was intended to be sold through the black market to villains, who would use them on Pro Heroes, and after a while, the yakuza would distribute a serum that would undo the damage done and restore the lost Quirks to the heroes. These products would be at a high price. Therefore, with the villains having the Quirk-Destroying bullets, the heroes having the serum, and Eri in the middle, the Shie Hassaikai can monopolize control of the market, earning massive profit and eventually emerging from the shadows.[11]

During his brash encounter with the League of Villains, Kai knew that at least one of its members would attack him with a Quirk, so he preemptively had Hari act as a sniper, equipped with experimental Quirk-Destroying Bullets, set as a precautionary measure. A measure that was proven very necessary as Mr. Compress lunged at Kai, only to have his Compress Quirk temporarily erased. When he battled Mirio Togata and observed his Permeation Quirk, Kai altered the terrain to block the hero's exit route, knowing Mirio couldn't use his intangibility to escape without leaving Eri behind. Shortly before the rest of the Nighteye Squad's arrival, Kai discreetly used his Quirk to heal Hari, all so the latter can pretend to be unconscious, blindside Eraser Head, and overtake the Erasure Hero. After defeating Sir Nighteye, Izuku arrived on the battlefield stronger than ever, making Kai realize the One For All inheritor was holding back before. Since he merged with Shin and gained access to the latter's Confession Quirk, Kai employed the same guerrilla warfare tactics the con artist uses to psychologically lure Eri back to his side, which was nearly successful had it not been for Izuku's interference.

  • Leadership Skills: Being the leader of the Shie Hassaikai, he is a very organized person who can factor in the abilities of multiple people to initiate coordinated, well-planned attacks. An example of this was when he suggested that Twice and Himiko Toga reveal their Quirk capabilities to prep for the impending arrival of heroes. Kai had carefully set various members of the Shie Hassaikai on different levels of the Shie Hassaikai Compound, all in an attempt to slow down the heroes so that Kai could make his escape with Eri.

Quirk[]

Overhaul Disassemble

Overhaul activated.

Overhaul (オーバーホール Ōbāhōru?): Kai's Quirk grants him the ability to disassemble anything he touches, as well as reassemble it in any configuration he desires, effectively giving him full control over the matter.

Kai can disassemble people to kill or reassemble them to heal their wounds. He can also do this to himself and even merge his body with others, even allowing him to use their Quirks, such as Shin's Confession and Rikiya's Energy Suck. Kai can regenerate his limbs without having to make contact with himself and can reform and reshape their bodies any way he wants.

In battle, Kai can freely manipulate his surroundings. He can modify the ground to maneuver himself and reshape the area into an advantageous and harmful state for his opponents. By touching his targets, he can completely blow their body apart, whether it be a limb or the entirety of it.

After Mr. Compress and Tomura destroy his arms, which are his Quirk Factor, Kai cannot use his Quirk.

Stats[]

Power
 
3/6 C
Speed
 
4/6 B
Technique
 
5/6 A
Wits
 
5/6 A+
Ambition
 
6/6 S+
Kai's stats, according to the Ultra Analysis Book

Equipment[]

Plague Mask: Kai has always worn a mask. Since being under the Hassaikai, Kai normally wore a simple black mask. After becoming a villain, Kai took to wearing his signature plague doctor mask that represents his efforts to cleanse the world of "hero disease".

Gloves: Kai always wears a pair of white rubber gloves. This helps prevent him from getting his hands dirty, and normally removes his gloves before using his Quirk. He wears them ultimately to avoid breaking out into hives.

Battles & Events[]

Battles & Events

Chapter Appearances[]

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 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 Debut
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 Appears
125. Overhaul Appears
126. Open Up, World Absent
127. Sir Nighteye and Izuku Midoriya and Mirio Togata and All Might Absent
128. Boy Meets... Appears
129. Eri Appears
130. Listen to the Truth Mentioned
131. Fighting Fate Appears
132. The Plan Appears
133. Catch Up, Kirishima Absent
134. Let's Go, Gutsy Red Riot Absent
135. An Unpleasant Talk Fantasy
136. Close at Hand!! Flashback
137. Restraint!! Appears
138. Go!! Appears
139. Shudder! The Underground Labyrinth Mentioned
140. Suneater of the Big Three Mentioned
141. Hassaikai: Behind the Scenes Flashback
142. Shield and Shield, Spear and Shield Mentioned
143. Let’s Rumble, Rappa!! Mentioned
144. Red Riot, Part 1 Absent
145. Red Riot, Part 2 Absent
146. Temp Squad Appears
147. Twoga!! Flashback
148. The Anguish of Young Twoga Mentioned
149. Don't Get Mad, Irinaka Appears
150. Mirio Togata Appears
151. Mirio Togata!! Appears
152. Lemillion Appears
153. Transform! Appears
154. Unforeseen Hope Appears
155. Saviors, the Saved and a Hero's Place Appears
156. The Power of Those Saved Appears
157. Infinite 100 Percent Appears
158. Chisaki's Warped Compassion Appears
159. It's Over!! Appears
160. Expressway Appears
161. Bright Future Mentioned
162. Suitable One Mentioned
Remedial Course Arc
163. Smoldering Flames Absent
164. Masegaki Absent
165. Win Those Kids' Hearts Absent
166. Be Proud, License Trainees Absent
167. Number One Hero's Starting Line Absent
168. The Strange Tale of Aoyama Mentioned
U.A. School Festival Arc
169. School Festival Absent
170. With Eri Fantasy
171. Gentle and La Brava Absent
172. Prepping for the School Festival Is the Funnest Part (Part 1) Absent
173. Prepping for the School Festival Is the Funnest Part (Part 2) Absent
174. Golden Tips Imperial Absent
175. Morning, the Day Of Absent
176. Deku vs. Gentle Criminal Absent
177. At the Construction Site Absent
178. The Woman Called La Brava Absent
179. School Festival Start!! Absent
180. Unbeknownst Absent
181. For Someone Else Absent
182. Let It Flow! School Festival! Fantasy
183. Festival All Day Long!! Absent
Joint Training Arc
194. Cold Skies over U.A. High! Absent
195. Clash! Class A vs. Class B! Absent
196. Make It Happen, Shinso!! Absent
197. Quaotic Quirkstravaganza Absent
198. Know Where You Stand when It Counts!! Absent
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 Absent
210. The One For All Dream Absent
211. That Which Is Inherited Absent
212. That Which Is Inherited, Part 2 Flashback
213. Realm of Souls Absent
214. Our Brawl Absent
215. Final Face-Off! Midoriya vs. Shinso! Absent
216. Class A vs. Class B: Conclusion! Absent
217. The New Power and All For One Absent
Meta Liberation Army Arc
218. The Meta Liberation Army Absent
219. Go, Slidin' Go! Absent
220. My Villain Academia Absent
221. Memento from All For One Absent
222. Tomura Shigaraki: Distortion Flashback
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 Absent
234. Destruction Sense 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. 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 Flashback
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 Mentioned
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 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 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 Flashback
306. The Final Act Begins Absent
Dark Hero 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!! Appears
312. Hired Gun Appears
313. High-Speed Long-Range Mobile Cannon Absent
314. The Lovely Lady Nagant Appears
315. Platitudes Appears
316. Your Turn Appears
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 Absent
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
Final War Arc
343. Let You Down Absent
344. Stars Absent
345. Division Absent
346. Super Hyper Unfair Broken Stage Absent
347. Inflation Absent
348. Unrequited Absent
349. Battle Flame Absent
350. Bound to a Fiery Fate Absent
351. Two Flashfires Absent
352. Ultimate Moves Absent
353. Endeavor Absent
354. Oopsie Daisy!! Absent
355. Extras Absent
356. Regarding the Enemy Absent
357. Wounded Hero, Burning Bright and True!! Absent
358. The Guy Who's Made Some Progress Absent
359. Place of Learning Absent
360. Despite It All... Absent
361. Abnormal Happenings Absent
362. Light Fades to Rain Absent
363. Those Who Defend, Those Who Violate Absent
364. Why We Wield Power Absent
365. No. 4 and No. 5 Absent
366. Full Moon Absent
367. Deku vs. All For One Absent
368. Rev Up, One For All Absent
369. A Chain of Events, Across the Ages Absent
370. HIStory Absent
371. Together with Shoji Absent
372. Naked Absent
373. Friends Absent
374. Butterfly Effect Absent
375. Chaotic Confusion Absent
376. On Knife's Edge Absent
377. The Chain Thus Far Absent
378. The Story of How We All Became Heroes, Part 4 Absent
379. Hopes Absent
380. A Skosh Absent
381. Dark Absent
382. Don't Let Him Go Absent
383. Meek Spirits Absent
384. It's a Small World Absent
385. The Impulses of Youth Absent
386. I AM HERE Absent
387. Congealing Absent
388. Toya Absent
389. Assurance and Prayers Absent
390. Shoto Todoroki Rising Absent
391. Rejecting the World Absent
392. Villain Name Absent
393. A Girl's Ego Absent
394. Ochaco Uraraka vs. Himiko Toga Absent
395. Built Upon the Joy of Others Absent
396. Battle Without A Quirk Absent
397. Trash Cleanup Absent
398. Toshinori Yagi: Rising/Origin Absent
399. Organic, Mingling Clusters of Light Absent
400. Beyond Limits Absent
401. The Lunatic Absent
402. The Tearful Days Absent
403. The End of an Era, and... the Beginning Absent
404. We Love You, All Might!! Absent
405. The Final Boss!! Absent
406. Get a Grip on Your Quirk!! Absent
407. An Exceptional Child Absent
408. The Eyes Tell All!! Absent
409. Quirk: Explosion!! Absent
410. Farewell, All For One!! Absent
411. History's Greatest Villain Absent
412. History's Maddest Hero Absent
413. Leaden Mass Absent
414. Overlay Absent
415. Rejection Absent
416. Wrench It Open, Izuku Midoriya!! Absent
417. Shimura Flashback
418. Meek Spirits Absent
419. Design Flashback
420. From Aizawa Absent

Anime Appearances[]

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 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 Debut
63. Unrivaled Appears
Season 4
64. The Scoop on U.A. Class 1-A Appears
65. Overhaul Appears
66. Boy Meets... Appears
67. Fighting Fate Appears
68. Let's Go, Gutsy Red Riot Appears
69. An Unpleasant Talk Flashback
70. GO!! Appears
71. Suneater of the Big Three Appears
72. Red Riot Mentioned
73. Temp Squad Appears
74. Lemillion Appears
75. Unforeseen Hope Appears
76. Infinite 100% Appears
77. Bright Future Appears
78. Smoldering Flames Flashback
79. Win Those Kids' Hearts Absent
80. Relief for License Trainees Flashback
81. School Festival Flashback
82. Prepping for the School Festival Is the Funnest Part Flashback
83. Gold Tips Imperial Absent
84. Deku vs. Gentle Criminal Absent
85. School Festival Start!! Absent
86. Let It Flow! School Festival! Fantasy
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 Flashback
94. Foresight Absent
95. Match 3 Absent
96. Match 3 Conclusion Absent
97. Early Bird! Absent
98. That Which Is Inherited Flashback
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 Flashback
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 Flashback
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
Season 6
114. A Quiet Beginning Flashback
115. Mirko, the No. 5 Hero Flashback
116. One's Justice Flashback
117. Inheritance Absent
118. The Thrill of Destruction Flashback
119. Encounter, Part 2 Absent
120. Disaster Walker Absent
121. League of Villains Vs. U.A. Students Absent
122. Katsuki Bakugo Rising Absent
123. The Ones Within Us Absent
124. Dabi's Dance Absent
125. Threads of Hope Absent
126. Final Performance Absent
127. Hellish Hell Absent
128. Tartarus Appears
129. The Hellish Todoroki Family, Part 2 Absent
130. The Wrong Way to Put Out a Fire Absent
131. Izuku Midoriya and Tomura Shigaraki Flashback
132. Full Power!! Absent
133. Hired Gun Appears
134. The Lovely Lady Nagant Appears
135. Friend Absent
136. Deku vs. Class A Absent
137. A Young Woman's Declaration Flashback
138. No Man Is an Island Absent

Trivia[]

  • Kai's name contains the kanji for "govern, regulate, administer" ( () chi?), "promontory, cape, spit" ( (さき) saki?), and "revolve, return, curving" ( (かい) kai?).
    • His first name notes his Quirk, Overhaul, which grants him the ability to disassemble and reassemble anything that he touches.
    • The "chi" in his surname has different meanings attached:
      • It could mean (to treat or cure disease) how he believes everyone is sick, obsessed with finding a cure.
      • (To research, to specialize in a topic) noting his research on destroying Quirks.
      • (To punish, to discipline, to teach someone a lesson) referring to how he treats Eri as a subject for his bullets and force her to obey through intimidation and how he was hoping to use the Quirk destroying drugs to control society through fear.
      • (To exterminate, to kill) seen several times that he used his Quirk to kill others.
  • He is a B-Rank Villain.[12]
  • In the Fourth Popularity Poll, Overhaul placed 25th.
  • In the anime, Kai's skin is seen breaking out in hives whenever his mysophobia is triggered.
  • Kai purposefully kept the scar that Magne gave him as a way to admit his fault in killing her, but also to keep an air of intimidation around the other League members.[13]
  • Kai's English voice actor as a child in the anime, Caitlin Glass, also voices Mina Ashido.
  • Kai, along with Hari Kurono, is the second villain whose villain name is the exact same as his Quirk. The first being All For One and the thirds being Chojuro Kon and Kiruka Hasaki.
  • Kai likes the Hassaikai.[2]
  • The orphanage Kai lived at as a child[14] bears a strong resemblance to the one Dabi was kept at by All For One.[15]
    • This is later proven to be true, as All For One explains how he and the Doctor copied Kai's Quirk and used it as the basis to create Decay.[16]

Quotes[]

  • (To Team Reservoir Dogs) "There are so many capable men... and all they can think to do is rob a convenience store? Kinda weird... you'd think a group this big might just, y'know... have bigger goals than that... You're all sick. And you need a cure."[17]
  • (To Eri) "You were born to break people... Every move you make gets people killed! Your very existence is cursed!"[18]
  • (To Izuku) "I'm a clean freak. When someone touches me... I lost it. I've never been pushed this far before..."[19]

References[]

  1. My Hero Academia Manga: Vol. 32, Omake
  2. 2.0 2.1 2.2 My Hero Academia Manga: Vol. 32.
  3. 3.0 3.1 My Hero Academia Manga and Anime: Chapter 151 and Episode 74.
  4. My Hero Academia Manga and Anime: Chapter 125 and Episode 65.
  5. 5.0 5.1 My Hero Academia Manga and Anime: Chapter 153 and Episode 75.
  6. My Hero Academia Manga and Anime: Chapter 157 and Episode 76.
  7. My Hero Academia Manga and Anime: Chapter 115 and Episode 62.
  8. My Hero Academia Manga and Anime: Chapter 152 and Episode 74.
  9. 9.0 9.1 My Hero Academia Manga and Anime: Chapter 160 and Episode 77.
  10. My Hero Academia Manga and Anime: Chapter 135 and Episode 69.
  11. My Hero Academia Manga and Anime: Chapter 158 and Episode 76.
  12. My Hero Academia: Ultra Analysis: The Official Character Guide.
  13. My Hero Academia Manga: Vol. 17.
  14. My Hero Academia Manga: Chapter 158.
  15. My Hero Academia Manga: Chapter 350.
  16. My Hero Academia Manga: Chapter 419.
  17. My Hero Academia Manga: Chapter 115.
  18. My Hero Academia Manga: Chapter 151.
  19. My Hero Academia Manga: Chapter 154.

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