Hinako, a fair-skinned, black-haired sister who loves her brother, is worried about her brother's lack of interest in women. "Maybe he's not interested in women?" Hinako, suspicious, repeatedly teases her brother, showing off her breasts and masturbating in front of him while pretending to be defenseless. Her cleavage is becoming more and more destructive as she grows, and while he is confused by her erotic provocations, he gets a firm erection. Seeing this, Hinako begins to approach him with even more provocative acts! French kissing in the cowgirl position, swallowing with a titty fuck blowjob, squirting with a vibrator and electric massager, pounding in the cowgirl position, creampie and facial, and more... 130 minutes of being overwhelmed by the strength of the sex drive of the little sister, which is unimaginable from her cute, shaved appearance.