Kaoru Saegusa is a cheerful and dynamic 30-year old woman who is still single. She works at the Tokyo Branch Office of Oedo Travel Agency. One day, she is sent to Hong Kong on business where she meets Shutaro Kamisanjo, a colleague of the company’s Hong Kong Branch Office. Finding Shutaro caring and sincere, Kaoru instantly falls in love with him. Kaoru, however, already has a longstanding relationship with her boss, Kimisuke Akazawa, a married man. She wants to end this relationship but cannot. As a result, she becomes romantically involved with two men at the same time.