After divorcing her husband 12 years ago, Yoshie raised Hiroaki single-handedly. Hiroaki successfully graduated from an industrial school and got a job at an automobile repair shop. Yoshie was worried about Hiroaki, who was busy working every day. Hiroaki invited Yoshie on her trip during her first long holiday. Hiroaki was thinking of confessing to his mother on this trip. That she had always liked her as a woman...
