Keiichirô Ishioka

Kato is a small time TV producer. He has a wife Masako, and a young son Taro. Kato also has a friend Yamazaki who he knew since college. Yamazaki has a girl friend Riko who lives with her younger sister Yuko who's an actress. Yamazaki is a lyric writer/womanizer and he starts to have an affair with Masako, but he's still going out with Riko.

One day, a handsome young man with amnesia comes to visit his mother at a gay bar. He gives him the name Maya and lets him help out at the store, but his memory never returns. He is good at playing guitar and singing, so maybe he was a musician? That's what he predicts...