After finding his mom killed, Satoru's time-traveling ability takes him back 18 years for a chance to prevent her death and those of three classmates.
A violence prone police officer discovers that his colleague is trafficking drugs.
An old woman has died and her widower with dementia confesses to killing her. After this, the story goes back in time to show the events leading up to her death.
A blind masseur visits a samurai to request the return of a loan. The samurai kills him in anger, then has his servant dump the body in the Kasane swamp. However, the ghost of the masseur ...