Shota goes to the exercise gym. However, he put aside exercise and is obsessed with instructor Yui's big butt! One day, Shota decided to stay at Yui's older sister's house! Inflate Ji-Po just here and set up a mischief at Yui's older sister's whip ass! Personal training is a blow job with a big butt sticking out! In the bath where the sweat was poured, for some reason the wash is standing back Namahame SEX! At night, a classmate of Mase Gaki also bursts in, rushing into a night of trembling buttocks! Eliminate lack of exercise and frustration with deca-ass exercises!
