Two sisters living in the countryside have always dreamed of visiting Tokyo. After becoming high school girls, they get their parents' permission and use their summer vacation to stay at their uncle's house in Tokyo for two weeks. The mother of the family has passed away, and it is now just the father and son (uncle and cousin) who live there. The two high school girls have grown up to be cute and beautiful, but when they meet their cousin again for the first time in 10 years, he has grown into an unpopular adult who is not used to being around girls. A provocative panty shot... What should I do?