Matsumoto Ichika plays a devilish cousin with a charming, cunning smile. Using her small breasts as a weapon, she relentlessly seduces her virgin brother. Taking advantage of the family's familiarity, she exposes her immature skin in an unexpected moment. Their affair behind closed doors is a blissful hell, with the boy at the mercy of her calculated technique. With the overwhelming texture that can only be achieved through uncensored footage, her juicy private parts welcome the penis, and she records her moans, hoarse with each climax. Cuteness and boundless lewdness combine to take away the boy's virginity along with his semen. This is the most erotic and dramatic first experience born from the shackles of being a relative.