My niece, Nanami-chan, came to stay at Yamada's house, a freeter who only thinks about her butt. Nanami doesn't listen to people, she just plays games all day long. Nanami who exposes her beautiful butt defenselessly... Yamada can't stand it and she buries her face in Nanami's butt... At first I was surprised by her sudden act, but it became fun from the middle and on the contrary I asked for more and more as if playing with my uncle. From that day on, the secret relationship between the two began.
