Shiraishi Nagisa, a university student, is a female college student and is a cosplay idol and her younger brother's girlfriend.Nagisa comes to visit her younger brother's house and shows her naughty cosplay, and then her lawyer's older brother, Seiichi, returns home.Nagisa, who has intuitively realized that he likes big breasts by Seiichi's special gaze, accidentally meets Seiichi on the road, and on the way he rubs his proud big breasts against Seiichi's elbow.He blossomed into the serious, perverted mind of Seiichi, and was invited to Seiichi's room to desert his boobs and creampies.Nagisa, who loves sex, hides from her younger brother and works hard at titjobs and creampie sex with her older brother Seiichi.
