Sachiko, a naive girl who came to Tokyo from the countryside to hide her 105cm plump breasts.She is full of curiosity and is covered with erotic days.She learns the pleasures of daily sexual intercourse with the saffle she met in Tokyo, and swallows semen with an innocent expression.Sachiko, who has tasted her climax many times and is completely addicted to sex, meets a pervert, works part-time at a sex shop, accumulates extraordinary experiences, and becomes more and more erotic. While enjoying the Tokyo life while moistening the obscene mako.