I was a virgin in the countryside, but I came to Tokyo and got fucked? The story of my life in a boarding house where I live with my sexy mother and three super cute sisters.

A male college student lives a life in a boarding house in Tokyo, not knowing what's right and what's left. At the boarding house were the mother, her eldest daughter (an office worker), her second daughter (a high school student), and her third daughter (a high school student). A man joins a family of four and a house full of beautiful women. Although he feels uneasy in an unfamiliar place, he develops naughty fantasies and begins a new life... The condition of the boarding house is to act as a tutor for the three girls! However, the three girls put aside their studies and are curious about sex and want to get to know men...