SDNM-485 A young married swimming school instructor, Miya Minase, 33 years old, AV DEBUT. She is very popular with the plays because of her gentle smile and is loved by the students like a mother.

A young wife and swimming instructor, "Minase Miya," who teaches children how to swim at a fitness club in Tokyo, appears in an adult video. Miya is very popular with students and parents alike for her gentle, motherly smile. But in reality, she is a lewd married woman who is not satisfied with sex with her husband and indulges in masturbation every day. During her first affair in her life, she climaxes from the pleasure of a stranger's cock, something she has never experienced before.