A kind mature woman extends a helping hand to a virgin boy, a highly acclaimed first time sex documentary. This time, Reiko Seo, a hugely popular mature woman who has continued her rapid success since her big break in her debut work last year, finally appears. Reiko-san, who is flustered by the unfamiliar situation despite being full of lewdness, and the virgin boy who is scared. Please take a look at the erotic chemical reaction that occurs when the two face each other for real.