Instead of executing dangerous criminals, the government has implemented a new method where they are recycled. This involves wiping their memories and giving them new personalities, after which they are reintegrated into their former lives. As a result, the rate of reoffending is extremely low.
After being punished for committing murder, Kou now lives with his older sister. Due to his memory loss, he carries a small notebook to help him remember his relationships and past experiences. Despite this, his classmates refuse to believe he is guilty. Kou must uncover the truth about the crime he is suspected of committing. With no recollection of his past life, how will he determine who can be trusted?
