A mother who becomes a sex slave to a debtor man in place of her daughter, and is repeatedly impregnated and exploited until she becomes pregnant. (Natsume Ayaka, ADN-782)

The daughter was swindled by a smooth-talking gigolo, who then disappeared after accumulating a huge debt. Repayment quickly stalled, and creditors broke into the house... Faced with a debt with no hope of repayment, Aya, who was in charge of dealing with the debt while her daughter was away, was suggested to sign a sex slave contract for "1 million yen a day" on her daughter's behalf.