Yura, a housewife, is aggressively sold to by a door-to-door salesman. She is disgusted by the man who comes during the day when her husband is away, and calls the man's company to complain, tearing up his business card. The man, who was fired from his company, resents Yura and becomes enraged, violently assaults her, and cums inside her with his huge cock, which is like a lethal weapon...! Yura is taken to the man's messy room and imprisoned, where her hands and legs are tied up and obscene toys are forced on her crippled body, and she is trained by being forced to masturbate as the man's exclusive 'sex slave', and is forced to have his head grabbed and his huge cock thrust deep into her throat in a brutal deep throat blowjob! She is not allowed to resist the man, who is stronger than her, and she swallows the semen that is sprayed into her mouth as ordered... Yura, who continued to play the role of a "sex slave" day after day, eventually gave up and her personality collapsed, and she stayed by the man in an obedient maid costume... Yura, whose sole purpose in life was to enjoy pleasure, surrendered her body to him, and was dominated by the man's huge dick, letting out moans outside the house...!