Love and Action in Osaka

A man works at a bank. He is the son of a yakuza thug. One day his fathers gang fights another group of thugs and the son steps in and helps. The sons high school class-mate is also the son of a yakuza member. This man does not want to fight if he does not have to. The bank employee helps his fathers group transform into a computer accessory company. He is expecting money from his girlfriends rich father however.