Sanzuki (Misuzu Tachibana), the only daughter of the Kirishima Inn, is the object of affection for employee Mikami. When Mikami discovers that Suzuki has begun a relationship with his coworker Takao and is soon to become engaged, he is devastated. As Mikami sinks into despair, a group of yakuza led by Kanzaki—men who hold the Kirishima Inn in contempt—approach him and draw him into their world. This encounter becomes a turning point in Mikami's life.