A single mother who was divorced from her husband but lived a happy life with her child... But then she suffered a tragedy when her son was involved in a serious accident and tens of millions of yen were needed for his treatment... Unable to raise the money, she clutches at straws and tries to negotiate with an organization that might be willing to make a donation... The single mother is happy when the organization agrees to donate the money, but...the man has his eye on her amazing body and, licking his lips, makes a trade... For the sake of her son, the wife is unable to refuse and, heartbroken, accepts the offer while crying...but the man's actions escalate...