Writer
Keiichi Yoshinaga, who works for a major construction company receives a sudden phone call from his ex-wife, Junko Aoba. She tells Keiichi that their second son, Tsubasa, who lives apart, has been arrested for murdering his classmate. Keiichi immediately meets Tsubasa, but for some reason he keeps silence. Since Tsubasa shows no signs of reflecting upon his conduct, he is possibly going to an open trial. To overcome this situation, Keiichi consults a lawyer Kyoko Kanzaki who has a child of the same age.
Novel
An ex-journalist Masuda whose article caused a scandalous fatality now works at a small factory. He learns that his colleague Suzuki is a former convict who killed some children back in middle school. Trying to get back his old job, Masuda secretly starts to write a piece on Suzuki while befriending him. The more he learns about his colleague, however, the more Masuda remembers his younger self, a boy who triggered his classmate's suicide.