Working as a campaign staffer for a mayoral candidate, Kintaro is assigned to tutor his boss' attractive teenaged daughter, Naoko Katsuda, who wants more from him than help with her math homework.

A car accident has left the owner of a udon restaurant temporarily handicapped, and Kintaro is helping out and learning the trade. The owner's daughter, Noriko has a well-heeled boyfriend, but a series of events leads Kintaro to doubt his sincerity.

Kintaro has challenged the local swimming coach (and former Olympic athlete) to a race, but he first needs to learn how to swim. While training, however, his situation with the coach, Ayuko Hayami is compromised.

Kintaro becomes a servant in a traditional-style mansion of a wealthy family, but is quickly dismissed. He then challenges the daughter Reiko Tarayama, who abhors men and has a fetish for her motorcycle, to a race.