All seniors at a high school stay together at a camp, including student Chinatsu. On their first day, the home room teacher announces that all the students must play the card game "Old Maid". In order to reverse the declining academic abilities of its younger generation, the Japanese government planned this camping program. In this card game, the students that lose will meet their deaths.
Chinatsu Akasawa

Kana Ohno

Minako Yokoe

Yohei Takashima
Naoya Yokoyama

Satoshi Kanda
Yoko Ueda

Unknown Role
Principal

Teacher Takizawa

Chihiro Shimokawa

Unknown Role

Keiichi Asano

Unknown Role
