Hinano is a bullied and lonely school girl who has no other means to express her feelings but write them down. When one day she hurries in the school nurse's room to escape, she meets a teacher who is about to change her life
A celebrated author's story about a genetic experiment morphs into reality, when it is read by three strangers. Trapped in a room, the four discover that one of them must be killed to save the rest from an escaped undercover recruit.