To repay the debts left behind by her late husband, Ryutaro, Chisato is forced to submit to the advances of a loan shark. On the day of her husband's seventh memorial service, Atsushi visits Chisato's home for the first time in years. Having harbored feelings for his older cousin since childhood, he discovers her being used by the filthy loan shark and is overwhelmed by intense desire. Meanwhile, Chisato becomes aware of Atsushi's emotions, and a new connection begins to form between them. However, she is still hiding one terrifying truth.