Teacher Haruka comes to her nephew Shota's house in Tokyo for training. Shota innocently pretends to play with Haruka, and he does a lot of naughty pranks, such as touching Haruka's big H-cup tits with a stethoscope made by Dr. Gokko. And Haruka-san is also ignited by Shota-kun's stimulating pranks, shakes her big breasts, moves her hips and starts a very violent SEX with her nephew Shota-kun.
