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Rinroku Kaishō
Rinroku Kaishō anime.png
Personal statistics
Name Rinroku Kaishō
Kanji 海勝 麟六
Alias Media King
Gender Male
Relatives Rie Kaishō (daughter)
Professional statistics
Occupation Chairman of JJ System
Media King
Information analysis adviser
Anime statistics
Debut Episode 1
Murder at the Ball
Japanese voice Shinichiro Miki

Rinroku Kaishō is the chairman of JJ System, which holds a monopoly on the communication infrastructure and its technology in postwar reconstruction Tokyo. Kaishō rules as the Media King, is widely known in political and industrial circles, and acts as an information analysis adviser to the Public Prosecutor's Office, the National Police Agency, and the government in general. Several of his celebrated detective works can be traced back to stolen credit from Yuuki Shinjuurou.


Rinroku is a slim man with rather wide shoulders. He looks older than he actually is, due to his grey hair and classic glasses. He has flat eyes and a long face and nose. He dresses in casual clothes, a dark blue shirt with long sleeves and a beige sweater over it. He has light brown pants and shoes in the same color. He also has a necklace with some kind of silver jewel on it.



His spouse is dead.


Murder at the Ball[]

Rinroku is first seen working on his computer in his bureau. Rie enters the room and Rinroku sees her via a monitor on his screen. He comments on the dress that it looks good on her.

Song of the Heartless[]

Masked Mansion[]


Rinroku has a direct control over the information networks of the entire country of Japan.


  • He eats peanut butter from a jar with a spoon and appears to consider that an acceptable snack.