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My hero Academia Boku no hero 159 Kai Chisaki KO by Amanomoon My hero Academia Boku no hero 159 Kai Chisaki KO by Amanomoon

Kai Chisaki

"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."

— Overhaul to Team Reservoir Dogs in "Unleashed"

Kai Chisaki

Biographical Information

Japanese Name

治崎 廻

Rōmaji Name

Chisaki Kai


Overhaul (オーバーホールŌbāhōru?)

Personal Description



Hair Color

Light Brown




First Appearance

Manga Debut

Image Gallery

Kai Chisaki (治崎 廻 Chisaki Kai?),[1] also known as the villain Overhaul, is a yakuza and the leader of the Eight Precepts of Death.[2] He serves as one of the main antagonists of the Internship Arc.




Overhaul's color scheme.

Overhaul looks like a typical man in his 20's, with short, brownish hair and eyes that are often bloodshot.

He wears a green coat with a furry collar as well as a pair of disposable medical gloves. His most distinctive feature is an orange, beak-shaped mask reminiscent of a plague doctor.

When he uses his Quirk, he appears to get rashes through his entire body. 
After Fusing with Shin Nemoto, he gets an additional two arms deformed with spiked claws and black parts of nemeto’s cape. His hair gets spikier, and his mask rips apart. It seems 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 Chisaki’s right hand and his Quirk is able to be in use. When he fuses with Katsukame, His lower body’s fused into a monstrous stone structure, potruding multiple appendages each equipped with hands. The hands have claws. Chisaki’s upper body’s the same but lies within the mouth of the structure. The upper jaw has Katsumake’s Mask.


Overhaul appears to be insane, believing that everybody around him is sick. He seems to see the world of Quirks and Heroes as a world filled with disease that he calls 'Hero Syndrome'. He appears to despise any acts of kindness and altruistic behaviour, as he sees it as some sort of illness that had been brought about due to the Heroes in society. He also seems to outright hate Quirks, wanting to use Quirk Destroying bullets as a way to bring people down by destroying their Quirks. He seems to suffer from mysophobia, showing worry when around unclean places. Overhaul despises being touched by other people.[3]

As a leader of his organization, Overhaul is levelheaded and possesses a strategic mindset. According to a conversation with Twice, Overhaul seems to be nice at first. Whether he is acting or behaving genuinely, Overhaul does possess polite mannerisms when he is not agitated and thinking straight. This is evident from his meeting with Mirio and Izuku. He will speak to others in a very composed manner, and display very good social skills in the required situation. However when he's aggravated, Overhaul will become extremely violent and does not discriminate if his victims are villains or not. When he is touched, he will display a very sinister and dark side to his personality, before lashing out with his Quirk. He is willing to use his own subordinates as human shields.[4]

Overhaul apparently has plans to become the next ruler of the underworld, going directly against Shigaraki but is also willing to use Shigaraki's influence as a way to further his own plans.[5] He also appears to care little if not none for his expendables in dire situations, destroying Shin Nemoto and himself to fuse and restore his stamina. Chisaki as stated by Kurono is a man who will do anything to reach his goals.

My Hero Academia (僕のヒーローアカデミア Boku no Hīrō Akademia) is a Japanese superhero manga series written and illustrated by Kōhei Horikoshi. It has been serialized in Weekly Shōnen Jump since July 2014,[5] and 14 volumes have been collected in tankōbon format. The series has been licensed for English-language release by Viz Media, and began serialization in their weekly digital manga anthology Weekly Shonen Jump on February 9, 2015.[6] The story follows Izuku Midoriya, a boy born without superpowers in a world where they are the norm, but who still dreams of becoming a superhero himself, and is scouted by the world's greatest hero who shares his powers with Izuku after recognizing his value and enrolls him in a high school for heroes in training. The manga was adapted into an anime television series; the first season aired from April 3 to June 26, 2016,[7] and a second season premiered on April 1, 2017.


On an Earth-like world where people with superpowers known as "Quirks" (個性 Kosei) are the norm, Izuku Midoriya is a regular middle school student who has dreams of one day becoming a Hero (ヒーロー Hīrō) despite being bullied by his classmates for not having a Quirk. After being the only one to try and save his childhood bully Katsuki from a Villain (敵(ヴィラン) Viran), the world's greatest Hero All Might bestows upon him his own quirk "One For All". The story follows Izuku's entrance into U.A. High School (雄英高校 Yūei Kōkō), a school that cultivates the next generation of Heroes.



My Hero Academia is a Japanese manga series written and illustrated by Kōhei Horikoshi. It began its serialization in the manga magazine Weekly Shōnen Jump in July 2014. As of June 2, 2017 the series been collected into fourteen tankōbon volumes.[8] The series is licensed for English language release in North America by Viz Media, who published the first volume on August 4, 2015. As the series is published in Japan, it is also released simultaneously in English digitally by Viz Media's Weekly Shounen Jump. As of February 7, 2017, 8 volumes have been released.[8]


On October 29, 2015, the series' official Twitter announced that My Hero Academia would receive an anime adaptation produced by Studio Bones.[9]

With the anime announced, TOHOSHI Group registered the domain name "" as the anime's website.[9] The anime is directed by Kenji Nagasaki, written by Yōsuke Kuroda, and feature character designs by Yoshikiko Umakoshi and music composed by Yuki Hayashi.[10][11] The anime premiered on MBS and other Japan News Network stations in 'Nichigo' time slot at 5pm on Sundays in Japan. The opening theme is "The Day", performed by Porno Graffitti and the ending theme is "Heroes", performed by Brian the Sun. In March 2016, Funimation Entertainment announced they had licensed the series for streaming services, home and broadcast release as well as obtaining the merchandise rights.[12] It has also been licensed in the United Kingdom by Universal Pictures UK.[13]

A second season was announced in the Weekly Shōnen Jump magazine's 30th issue of 2016.[8] It premiered on April 1, 2017 on NTV and YTV, with the staff and cast from the first season returning to reprise their roles.[14]

Video game[edit]

A video game based on the anime was announced in November 2015.[15] The game is developed by Bandai Namco Studios and published by Bandai Namco Entertainment for the Nintendo 3DS handheld game console, which was released in Japan on May 19, 2016.[16]


It was nominated for the 8th Manga Taishō.[17] Before the anime adaptation's premiere, manga author Masashi Kishimoto praised Kōhei Horikoshi's work, believing it would be a success overseas; Horikoshi, meanwhile, has cited Kishimoto's Naruto series as a primary source of inspiration.[18]

Volume 1 reached the 7th place on the weekly Oricon manga chart with 71,575 copies sold.[19] It sold out almost immediately on its first printing.[20] Volume 2 reached the 6th place, with 167,531 copies[21] and, by January 18, 2015, had sold 205,179 copies.[22] As of March 2017, there were over 10 million copies of My Hero Academia in circulation.[23]

The story has been noted to take inspiration from elements in superhero comics, such as the aesthetics of its characters.[24]

Alex Osborn of IGN gave the anime series positive marks, saying "The first season of My Hero Academia delivers thirteen episodes of fantastic action, elevated by a heartfelt story that's wrappedizawa: "Midoriya, I can't anticipate what will happen. So no matter what, don't end up in a state where you can't move."

Night Eye: "Were you that afraid of Lemillion?"

Last Page:

Deku: "It’s the grinding sound of my muscle and bones! My whole body is crying! But…I still can move!!! My whole body hurts and I won’t last long. But I can move! One For All 20%!"

Overhaul: "You should have realized by now that you guys are making this situation only worse. Give up and accept that everything will end up in the way I said. “Everybody will die”. "

Deku: "I won’t let that happen! Even if it’s already decided!"

Deku: "I WILL CHANGE THE FUTURE!!" around a core cast of memorable and relatable characters." Osborn went on to state that the villains were underdeveloped.[25]

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Submitted on
November 13, 2017
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