Rina Onkai is an underwear model in Tokyo, she is on her way back home to prepare to celebrate the birthday of her only brother, Yuzuru. He is a naughty, naughty child with a dark personality, often playing depraved games, stimulating the desires of young boys who are in adolescence. Because of this, when her sister had a little drunken yeast in her body and accidentally exposed her big breasts in front of him, he made up his mind that he had to be equal to his sister that night. It's easy to understand because she is already a photo model, every time she comes out, she swallows every part of her body, and her younger brother has such a personality, so this thing that will never happen is very likely to become a reality. Indeed, that night he sneaked into her room in secret, and although he was still awake, this poor little brother seemed to be not afraid at all, rushed in and squeezed her breasts and began to click back and forth, so that she could not turn back. It's true that he's a spoiled child.

(This movie has been changed, the old code was: JUX-189)