Ryota Nonomiya is a successful businessman driven by money. He learns that his biological son was switched with another child after birth. He must make a life-changing decision and choose his true son or the boy he raised as his own.

Set in the near future around Shinjuku, Tokyo. Shinji got out from a youth detention center. Barikan suffers from stuttering and extreme shyness. These two men meet in a boxing gym. Shinji and Barikan become friends and pursue boxing under a hopeless situation.

Ryota is an unpopular writer although he won a literary award 15 years ago. Now, Ryota works as a private detective. He is divorced from his ex-wife Kyoko and he has an 11-year-old son Shingo. His mother Yoshiko lives alone at her apartment. One day, Ryota, his ex-wife Kyoko, and son Shingo gather at Yoshiko's apartment. A typhoon passes and the family must stay there all night long.