In a certain high school, an ordinary girl named Wakakusa (played by Fumi Nikaido) can't stand her ex-boyfriend Kannonzaki (played by Shuhei Uesugi) bullying her classmate Yamada (played by Ryo Yoshizawa), and often intervenes. Yamada is grateful for Wakakusa's righteousness and decides to share with her an unknown treasure - a corpse lying by the river, rotting in the reeds until only bones are left. Another person who knows this secret is their schoolmate, Yoshikawa (played by Sumire Asano), who has entered the modeling circle at a young age. In order to maintain her figure, the seemingly glamorous Yoshikawa often overeats and induces vomiting. Kannonzaki has only violence and sexual desire in his mind. He and Wakakusa's friend Oyama (played by Shiori Doi) get together and indulge in depravity. The cute girl Tajima (played by Aoi Morikawa) is Yamada's little fan girl. This girl without self finally finds that the other party doesn't care about her existence at all... This film is adapted from the manga of the same name by Kyoko Okazaki.