A co-worker confronts Mamoru on his apparent apathy toward life, and this results in Mamoru leaving his job out of humiliation. Now alone and without work, just as it seems that things could not possibly get worse, parts of Mamoru's bicycle begin to disappear, one by one. In frustration, Mamoru leaves a note for the thief, begging him to just take the whole thing. The note left in response is signed God, leaving Mamoru only more confused. At last, when the only remaining piece of the bicycle is a lonely bell, Mamoru receives an envelope, containing addresses at which each piece of the bicycle might be retrieved.

Kaz, a Japanese college student, is thrown into a world of depression after his best friend is murdered in America. Elsewhere, a girl named Michi stands in front of a grave high in the mountains of Japan. Kaz embarks on a spiritual journey, where he crosses paths with Michi who is trying to escape the influence of Ito, the leader of a suicide club. Will Kaz and Michi go through with their self-destructive plans, or will divine intervention show them a way out?