Ep. 10: Detektif Kenmochi merekrut Hajime untuk menyelidiki pencuri Kaitou Gentleman di mansion Gamou Gouzou.

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Detective Kenmochi asks Hajime for help catching a phantom art thief, a so-called Kaitou Gentleman who leaves calling cards announcing his next target. He takes Hajime and Miyuki to the mansion of the master artist Gamou Gouzou. There, Hajime meets Sakura Izumi, a former school friend who has been declared Gouzou's heir based on a stolen painting of his daughter which was sent to an art competition by the Kaitou Gentleman. The painting is stolen and Sakura is assaulted and her hair cut and Hajime believes that it was done by one of the members of the group staying in the mansion. Meanwhile, Gouzou's lover, Dr. Satomi Kaitsu plans to poison Sakura but she is strangled to death and the portrait of her is stolen. Case file cast: master artist Gamou Gouzou, butler Komiyama, Sakura Izumi, Dr. Satomi Kaitsu, art magazine journalist Daigi Maki, butler Komiyama, ghost painter Nobuhiko Izumi, and Hajime's friend Itsuki. (Source: Wikipedia)