Miki, a mother burdened by guilt, lives in financial hardship and can't bring herself to oppose her dissatisfied son. Overwhelmed by long hours of daily part-time work, she constantly endures his complaints upon returning home. One day, reaching her breaking point, Miki blurts out in emotional desperation, "If you're unhappy, I'll do anything for you." Taking her words literally, her son begins demanding sexual acts from his own mother. It starts with a blowjob and gradually escalates into intense intercourse. Their familial bond distorts as physical desire overtakes their relationship. The connection between them, driven by mutual craving, transforms into something far beyond that of a family.