Meminisse

A boy named Rai Kurusu lost his family at a young age but cannot recall the details of the event. A girl named Sai appears at his school to warn him that someone is trying to kill him. Sai asserts she possesses abilities related to memory manipulation, as does the person targeting Rai. It is revealed that Rai himself has considerable destructive power. The story explores what events from his past he is unable to remember.