Kentaro, a university student, is an extremely virile and popular man.He seduced and fucked the women around him.Worried that if things continue like this, they may end up in trouble one day, their mother orders Kentaro to spend the summer vacation at her parents' house in the countryside to change her... but when Satoruko and Chisato's aunt and sisters hear that her nephew is incredibly intimidated, they are so curious that they can't hold back, and begin seducing Kentaro.
