"Nana-chan", a middle-aged man's favorite, came to visit his favorite uncle's house! When she hears that her aunt is away, she immediately switches on to seduction mode! An uncle who is approached by a super beautiful girl and has no reason to refuse, so he surrenders to Nana's temptation and crosses the line... Still not enough, Nana even seduces her cousin Masashi! ? She looks like a neat and beautiful girl, but she's so erotic...I can't stand it! !