Hana is a full-time housewife. - Her husband, Kenji, is an office worker. - Hana has always had the personality of not being able to say no when someone asks her out, and a man who notices this forcibly asks for her body for the sake of her huge breasts, and she accepts without being able to refuse. - One day, Kenji's older brother, who had been eyeing Hana's huge breasts for some time, attacked her. - And ever since then, Hana's body has been used to treat her brother's sexual desires...