The story revolves around the love, friendship and relationships between four characters who meet by chance.

Shuhei is leading a tough life. His alcoholic mother Akiko can only hook up with bad guys and order Shuhei to go get money from his disapproving grandparents instead of going to school. Except raising the little half-sister, his rock-bottom life seems to have no end.

Sanae, who went to prison after failing to kill her ex-boyfriend six years ago, meets Kenta, a forest ranger, and gets married. Sanae and Kenta's married life takes a new turn when the wife of Sanae's ex-boyfriend appears. Sanae still can't forget her ex-boyfriend, and Kenta is having a hard time dealing with her.

Mikami, an ex-yakuza of middle age with most of his life in prison, gets released after serving 13 years of sentence for murder. Hoping to find his long lost mother, from whom he was separated as a child, he applies for a TV show and meets a young TV director Tsunoda. Meanwhile, he struggles to get a proper job and fit into society. His impulsive, adamant nature and ingrained beliefs cause friction in his relationship with Tsunoda and those who want to help him.