Fair-skinned Amano Aoi with soft skin is tied up with hemp rope, fulfilling her role as a sex doll. She loves to cum in front of her master and can't help but touch herself while tied up, causing her master to take notice. The master then lifts her wrists, prohibiting her from masturbating, and enjoys the sight. With one leg raised and bound like a puppet, Aoi exposes her bushy vagina and receives her master's large penis. Aoi cums instantly, and her tied-up state makes her struggle to stand. Despite being scolded by her master for cumming too much for a sex doll, she continues to be fucked and receives a creampie, with the semen overflowing from her vagina. Under her new master's care, Aoi is sensitive during her initial sensitivity check and cums without control, exposing her embarrassing state and earning the label "weak pussy." To become a proper sex doll, she is trained with random men. Eventually, Aoi is recognized and eagerly services her new master's large penis, receiving men's semen all over her face.