After Emiko, a bookstore owner, is driven to suicide by loan sharks, her orphaned son Eisuke decides to take his revenge on them. As Eisuke has no relatives, he is taken in by Keiko, who keeps an eye out for him due to his unusual behavior. One day, Eisuke breaks into the loan company with an improvised gun. In the moment, Keiko ends up becoming Eisuke's accomplice and helps him succeed in the robbery. However, the two are surprised when they hear something on the TV news that differs from the truth.