Suzuki, a second-year middle-school student, falls into a pond while visiting her grandfather during summer vacation and awakens in the liminal world between life and death. During seven days of training with Saemon, a guide who sends the souls of the dead onward, she confronts what it means to live and to part from people she loves.

A seven-day story of training as a guide for the dead in the world between this life and the next.