Thirty-year-old, unemployed Kenji (Kaku Tomohiro) spends his days listlessly at his parent's home, which is set to be torn down any day now. He relives his childhood when a third grader out for summer vacation nails Kenji with a water balloon, and Kenji fights back.

Mike is just an ordinary young man, who temporarily works for an art college examination coaching school. His girlfriend Yu works for a film production, and they live together in a tiny apartment in Tokyo. Their life looks absolutely normal without any problems before Mike's unexpected words emerge. One day, the young couple's relationship gets changed and developed in unexpected ways.

Yuri, Moeko, and Ai are best friends from high school. Though their twenties were about to end, they believed their eternal world would remain forever. In spite of their will, some misfortunate events such as love, betrayal, memory, regret, and one book with its secret exam their friendship. Those girls get lost in the unveiled story, which is filled with meeting and parting. Scattered life = scattered story will move on any further? A little journey begins now.