A Taiwanese high school baseball team travels to Japan in 1931 to compete in a national tournament.
Passionate about life and art, young researcher Ching is in love with museum historian Tung-Heng, but he is absorbed in his work. Then Tao arrives in Taiwan to view an item of historical calligraphy, and they realize why he pursues calligraphy.
A Japanese girl (Kato Youki) is on a three month visit in Taiwan after breaking up with her boyfriend to study Chinese at a language center. One day she has a brief affair with Wu and later he requests her to sign a contract to be his girlfriend for 90 days and she agrees. One of the condition of the contract is they must get separated after 90 days. However, after getting know each other quite well, both find that the relationship seems to be true love and both are unwilling to break the contract agreement as the dateline approaches. What is the outcome of their love story in the end?
