Maki, a married woman, has gained weight from eating out constantly. In order to lose weight, she decides to go to a nearby pool for swimming lessons, but... the instructor, Osawa, points out her protruding pubic hair. Maki is hesitant, but since she has never shaved before, she follows Osawa's advice and shaves her crotch until it's smooth... Maki is so sensitive that she can feel the friction of her clothes on her first shaved pussy. Moreover, during the lesson, Osawa notices the obscene situation of her sighing due to the friction of her clothes.