Reina has been tormented by her uncle since she was young. Even as she grew up, this relationship continued, and when they reunited after several years, her uncle's pranks escalated. He groped Reina's fully developed large breasts and performed a body check, even forcing her to perform fellatio and have sex, and then called in friends for a threesome. However, Reina, who can't refuse due to her personality, blossomed into her inner masochist...
