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I'll warn you. SPOILERS.
This article contains spoilers for Chapter 3, Part 1.

Ranmaru Kageyama (影山 蘭丸(ランマル), Kageyama Ranmaru?) was one of the 20 participants in the Death Game. He died in the First Trial.


Ranmaru is a thin, short, teenage boy with gray-blue eyes and soft, fluffy-looking white hair with bangs.

Ranmaru wears a high school gakuran uniform, with an especially cropped top. The pants are held up with a light gray belt. His body is wrapped in bandages from collarbone to the palms of his hands and he wears a shuriken-shaped pendent. He's also wearing indoor school slippers.

He wears a collar as do all participants, dummies, and floor masters. Like all of the dummies, Ranmaru wears one that was specially made for doll usage.

Rio Ranger does not seem to take any of Ranmaru's clothing.


Ranmaru is a casual and easy-going boy. He is generally placid in nature, although occasionally flustered, such as when Sara holds his hand. He seems to come off as nervous or awkward in certain situations. Ranmaru also tries to keep quiet and distant until provoked.

He is shown to be compassionate and expresses a want to be useful to the others.



Ranmaru was a high school student.

The Death Game

Ranmaru was one of the 20 participants forced into the Death Game, he was alone, and died during the First Trial from something unknown that caused a large wound on his stomach. Before he died he describes that he had been feeling no pain, possibly indicating that he had become numb to it in the end.

A recording of his death was discovered by Sara and Keiji in Miley's room.

Ranmaru Doll

After his death, Ranmaru's AI was uploaded into a doll that looked identical to him in order for him to help the Death Game participants during the third chapter. He was paired with Sara as her support.

From what is shown in Chapter 3 so far, he has an awkward demeanor to him when he meets Sara for the first time, and is nervous to be her pair. He's willing to work with Sara and help her solve puzzles or fight in battles. At times he appears a bit flustered by Sara, for example when she holds his hand to enter the Discussion Room, he's surprised and blames her for being so nervous when she tells him not to worry about it, else he wastes his battery power.

If Shin is still alive (opposed to Kanna), Ranmaru also willingly becomes "it" for Sara's sake and to take the burden off her shoulders. Even though Hinako questions what he's doing, Ranmaru brushes it off, saying he can do whatever he wants. Despite this, Ranmaru still shows a fear of dying again and does nothing during the battle with Sou out of fear that Sou's death will also kill him and the rest of the Dummies

Supposedly, all dolls individually possess one unique piece of information. His is that one of the human participants are working with ASU-NARO. He tells Sara this in the Discussion Room when they're both alone.


Person What they call Ranmaru What Ranmaru calls them
English Japanese English Japanese
Sara Ranmaru ランマル, Ranmaru? Sara サラ, Sara?
Joe Joe ジョー, Joe?
Keiji Ranmaru ランマル, Ranmaru? Keiji ケイジさん, Keiji-san?
Q-taro Q-taro Qタロウさん, Q-taro-san?

Person What they call Ranmaru What Ranmaru calls them
English Japanese English Japanese
Kurumada Fluffy-mop buddy Kurumada
Hinako Ranmaru ランマル, Ranmaru?
Ranmaru (self) オレ, Ore?

Person What they call Ranmaru What Ranmaru calls them
English Japanese English Japanese


  • The kanji that makes up his first name are , ran?, lit. "orchid" and , maru?, lit. "circle".
  • He had a 5.3% chance of winning the Death Game.
  • Ranmaru is shown to be below average height as he states, "You're just wanting to make fun of me for my height, aren't you..." when first meeting Sara.


ve Characters
Participants Sara ChidouinJoe TazunaKeiji ShinogiShin TsukimiKanna KizuchiGin IbushiQ-taro BurgerbergReko YabusameAlice YabusameKazumi MishimaNao EgokoroKai Satou
First Trial victims Dummies Hinako MishukuNaomichi KurumadaShunsuke HayasakaAnzu KinashiMai TsurugiRanmaru Kageyama
Kugie KizuchiMegumi Sasahara
ASU-NARO Floor Masters Sue MileyRio RangerTia SafalinGashu SatouSou Hiyori
MeisterMan from the MemorandumMaple
Other Mr. ChidouinMrs. ChidouinRyoko HiroseBotsunGirl from the MemorandumMr. Policeman
Survival Island characters ReiJin MutouTouko Rikuno
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