Yū, also called Yū-chan is a male prostitute.
He has a secret relationship with the married, older Machiko, but only because she's a rich woman and actually finds her uncomfortable.
One day, Machiko reveals to Yū that she is planning on the murder of her husband Seinosuke Andō and the taking the money. She would then like to marry Yū. Yū and Machiko go to get the money, but then Seinosuke, Lassie and Chiyomaru arrive. Seinosuke hits Yū on the ground with a judo movement. Yū runs away and before leaving Machiko.