Office lady Mayuka Misaki is suddenly fired by her department chief and forced to vacate her company housing, leaving her with nowhere to turn. Broken by the chief's harsh words, she pledges absolute obedience to him. This vow leads to her body being used in various degrading ways—not only by the chief, but also through reward blowjobs for the top salesmen and sexual hospitality for important clients. Demoted to the lowest position as the semen disposal girl, she isn't even allowed to resign. Day after day, she endures relentless humiliation and abuse.