I (Takumi Kitamura) am a high school student. I happen to find a diary by my classmate Sakura Yamauchi (Minami Hamabe) that reveals she is suffering from a pancreatic disease. I spent time with Sakura, but she dies. 12 years later, due to Sakura’s words, I (Shun Oguri) am now a high school teacher at the same school where I graduated from. While I talk with my student, I remember several months I spent with Sakura. Meanwhile, Kyoko (Keiko Kitagawa), who was Sakura’s friend, is soon to marry. Kyoko also recalls the days she spent with me and Sakura.

10 high school students including Yuka Kabayama are suddenly led to a room and must play the jinrou game. Yuka Kabayama has the jinrou card. She has to hide that fact and the kill players who have the citizens cards one by one. Yuka Kabayama gets excited by her situation.