Plastic Romantic

This is early 1980 where there is no internet or cell phone. Jo Umeyoshi, who plays around, meets Chihiro Sakagami and falls in love with him. Umeyoshi is excited and thinks that Chihiro is his destiny. On the other hand, Chihiro, who has a famous father, couldn’t figure out why he had to exist. And Chihiro starts to have feelings for Jo who is a very unique and right kind of a guy?