Without a case to solve, you can't be called a detective. The college student detective known as "Sherlock Holmes", Akechi Kyousuke (Nakamura Tomoya), ignores the dissuasion of his assistant, Hamura Jo (Kamiki Ryunosuke), and pesters the president of the film research club because of the strange things happening in the club: members commit suicide, scary faces appear in short films, and threatening notes are received at the upcoming training camp, which makes many members want to quit. However, other people's troubles are the fun of detectives. Akechi pesters the president to participate in the training camp but can't convince him. When he is in trouble, the mysterious beautiful girl detective Kenzaki Hiruko (Hamabe Minami) appears to help him out. On the condition of "don't ask her purpose" and "she will participate together", Akechi and Hamura are allowed to sneak in.