The son spends his days in agony as his mother, Rieko, spends her days defenseless. - One day, the son reaches the limit of his patience and forcibly pushes his mother down. - Rieko was raped despite her reluctance, but from that day on, she became obedient to her son who said, ``It's my mother's fault because she's erotic,'' and she started giving him blowjobs almost every day. - While spending such days, the mother can no longer suppress the heat in her body and finally begins to ask for her son's cock...