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.
Toru recalls his life in the 1960s, when his friend Kizuki killed himself and he grew close to Naoko, Kizuki's girlfriend, and another woman, the outgoing, lively Midori.
A seemingly unremarkable man called “Mouse” is caught by the police. In exchange for his freedom, he goes undercover, infiltrates a drug ring, and arranges a fake deal, but an unexpected turn of events occurs.
