Satoru Kido is your below-average detective. One day, he receives a letter with a ticket. The job is a simple lost item case. He accepts the case and sets off for the mansion, where a young mistress, an old butler, a beautiful teacher, a lovely maid, and an ugly manservant all await his arrival. Kido sets out to search for the missing ruby ring, but a bizarre spectacle of desire and shame awaited him?