Hitaka Touko catches a thief in her room. It turns out to be Hayashida Ichisaie, a classmate. Through a series of unexpected moments, she finds herself caught up in the act of burglarizing along with Ichisaie.

One day, 10-year-old Yamato and his friend Miku discover a man in a back alley who's suffering from vicious stab wounds. The man recognizes Yamato, and uses his last breath to share a secret with the childre...