Ai&rsquo.s (Sairi Itoh) mother followed various religious groups. Her mother placed Ai in a religious group and she lived there for 7 years. The religious group is then exposed by the police. Ai is moved to a new home and begins to attend middle school, but she can't stay at the new home. Ai dro ps out of school. She looks for a place to stay, drifting through various families. The only person who can understand her is Ryota (Kenta Suga). He is troubled kid who always looks for next place to stay.