Kazumi Mishima (三島(ミシマ) 和己(カズミ), Mishima Kazumi?) is a high school teacher and one of the 20 chosen to participate in the Death Game.


Mishima has disheveled gray hair and light brown eyes hidden behind his circular spectacles. He wears a brown suit with a lime-colored undershirt worn with a tie, alternating between green and orange stripes.

He wears a collar as do all participants, dummies, and floor masters. Like all of the participants, Mishima wears one that was especially made for human usage.


Being a little odd, Mishima often puffs mad scientist laughs after sentences, and his emotions often conflict with his appearance. Mishima seems to enjoy acting strange to amuse others, behaving cryptic and overly analytical of everyone's actions. His unusual social quirks aside, Mishima makes it clear he has no ill intentions and frequently reminds others to be safe and cautious. Despite appearances, Mishima is an incredibly kind, caring and encouraging person. After his A.I. self learned about how much suffering Nao was going through after his death, he could only blame himself for it. He deeply regrets not being able to live longer, because he truly just wanted to protect Nao. He also regrets not being able to live on to see Nao continue to grow, as well as his other students.

He's shown to not only be caring towards Nao though, but he also shows great concern for Kanna and even helps to spur her onward towards hope, albeit by lying about the circumstances of the first trial.


Not much is known about Mishima's life, though his A.I. self mentions only two major points in his life; these being the day he became a teacher and Nao Egokoro's graduation. Even after Nao's graduation, she still visits his atelier to learn more about art from him. He greatly cares for Nao and their bond is incredibly strong.



The Death Game

It was a joyous day. My students wished to be taught oil painting, so I held a lesson at my secret atelier… [...] I drove everyone home as well… And while heading for the last house, there was a security checkpoint. After being stopped there… it seems I lost consciousness. When I awoke, the First Trial began.
— Response to "Memories before arriving"


Person What they call Mishima What Mishima calls them
English Japanese English Japanese
Sara Professor Mishima ミシマ先生, Mishima-sensei? Miss Sara サラさん, Sara-san?
Joe Mishima ミシマ先生, Mishima-sensei? Joe ジョーくん, Joe-kun?
Keiji Mishima ミシマさん, Mishima-san? N/A N/A
Shin Mishima ミシマさん, Mishima-san?[4] Sou ソウさん, Sou-san?[4]
Gin Old guy おっさん, Ossan?, lit. "Old man; uncle" Gin Gin-kun[4]
Kanna Mr. Mishima

ミシマさん, Mishima-san?
ミシマ先生, Mishima-sensei?

Miss Kanna Kanna-san[4]
Q-taro Old man
おっさん, Ossan?, lit. "Old guy; uncle"
ミシマ, Mishima?
Reko Nutty professor
ヘンテコ教師, Henteko kyōshi?, lit. "Weirdo teacher"
ミシマ, Mishima?
Alice Mishima ミシマ, Mishima?[4] Gonbee Gonbee-san[4]
Nao Professor 先生, Sensei?, lit. "Teacher" Miss Nao Nao-san
Mishima (self) , Watashi?
Kai Kai-san[4]

Person What they call Mishima What Mishima calls them
English Japanese English Japanese
Miley N/A N/A N/A N/A
Ranger N/A N/A
Safalin N/A Han'naki-san
Gashu N/A N/A


  • His likes are listed as painting, his students, and tea in his character profile.[3]
  • The kanji that makes up his first name are , kazu?, lit. "peace" and , mi?, lit. "oneself".
  • He had a 3% chance of winning the Death Game.
  • While naming Midori in Chapter 3, Part 1, Mishima is the only survivor of the First Trial that does not generate a reaction from him.


  1. Chapter 1, Part 1. Your Turn to Die ―Death Game By Majority― (キミガシネ ―多数決デスゲーム―) by Nankidai. August 28, 2017.
  2. serenami (August 6, 2019). Nankidai private DM. Retrieved on August 7, 2019.
  3. 3.0 3.1 3.2 3.3 Nankidai (May 30, 2019). Kimi Ga Shine Character Profile Vol. 1 (キミガシネ キャラクタープロフィール第1弾, Kimigashine kyarakutāpurofīru dai 1-dan?) (Japanese). Pixiv.
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Island Existance: Mishima's Story. Your Turn to Shine: Island Existance (キミガシネ番外編 ~生存島~) by Nankidai. December 20, 2019.


ve Characters
Participants Sara ChidouinJoe TazunaKeiji ShinogiShin TsukimiKanna KizuchiGin IbushiQ-taro BurgerbergReko YabusameAlice YabusameKazumi MishimaNao EgokoroKai Satou
First Trial victims Kugie KizuchiMegumi SasaharaHinako MishukuNaomichi KurumadaShunsuke HayasakaAnzu KinashiMai TsurugiRanmaru Kageyama
ASU-NARO Sue MileyRio RangerTia SafalinGashu SatouMeisterMan from the MemorandumMaple
Other Sou HiyoriMr. ChidouinMrs. ChidouinRyoko HiroseBotsunGirl from the Memorandum
Survival Island characters ReiJin MutouTouko Rikuno
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