Rampo Kitan (also known as Ranpo Kitan: Game of Laplace) is inspired by the works of Edogawa Rampo, and is to commemorate 50 years since his passing.
It follows the story of Kobayashi, a middle school boy, as he discovers who framed him for the murder of his teacher. He then joins the high school detective who had been investigating the aforementioned murder, Akechi, as a voluntary assistant.
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Episode 1, Kobayashi and Hashiba were just ordinary High School students, until Kobayashi was framed for murdering his own teacher. In order to prove his innocence, Kobayashi and Hashiba teamed up with famous young detective Akechi to solve the case.