Toshio, an unpopular lame man, devotes himself to masturbation day in and day out in order to relieve the loneliness of his girlfriend. Her mother-in-law Akari, who was worried about Toshio, decided to teach Toshio her female body, using her own body as her practice platform. With only her knowledge of AV, Akari patiently teaches Toshio about a woman's body. Thanks to Akari's sex education, Toshio improved steadily. In this way, while she puts her body together many times ….
