Ryusei Koki is one of the male students at Akademi High School.
Ryusei has blue hair that is swept to his right, with two strands falling into his face. His eyes are blue as well. He wears the default uniform unless customized, as well as glasses with blue frames.
Ryusei is a Teacher's Pet. He will give a suspicious look before crossing his arms if a camera is pointed at his face. If he witnesses murder or discovers a corpse, he will report it to his teacher.