With their mother dead and abandoned by the father are the brothers Kouhei (Yamamoto Yusuke) and Shuhei (Seto Koji) Mikami living together and share a close bond. Both are working at the same factory, where the intellectually disabled, autistic Shuhei is violently abused by the plant manager on a daily base. One day, when he finds out, Kouhei kills the man in affect and deprives money. He buries the corpse in the mountains with his younger brothers help. During the criminal investigation is it Shuhei who soon draws the attention of the Detectives on the Mikami brothers through his diffus behavior and words. Even through he is unable to comprehend the homicide of his older brother and doesn´t understand the situation, the Police uses Shuhei as deciding factor in arresting the murderer.
Source: Fuji TV