Perfect Crime Party is about three elementary school children who decide to form a Perfect Crime Club, performing seamless acts of crime. At the beginning of the series, their crimes are as simple as putting a dirty tray on the desk of a boy that already took returned his tray without being caught, or switching seemingly identical items. The plot follows the group's efforts to commit perfect crimes within their school.

Manga adaptation of the HaruChika novel series by Sei Hatsuno. The original novels revolve around two high school students named Haruta and Chika, who are members of a wind instrument club that is on the verge of being shut down. The two are childhood friends, and they spend their days practicing hard while also trying to recruit new members. When a certain incident happens within their school, they work together to solve it. (Source: Anime News Network)