"Fumika" has longed for her uncle since she was young, saying "I'm going to marry my uncle" every time I visit the countryside with my family.Even though I thought that my uncle was a child, I was lusting for her growing niece every time I met her, and I was secretly playing pranks on her parents.She grows up accepting that Fumika is happy with her uncle.Fumika goes to school and is allowed to go to the countryside alone.