Haruki's young and plump sister who teaches diet gymnastics. Shota gets excited by her big ass and makes a prank on her body touch. After exercising, take a shower together to sweat, rub Ji Po on your buttocks, and mess with your sleeping sister at night, and the Erogaki power is fully open! The comic version "Shota-kun's H Mischief" is now available on the ebook floor!