When she gave birth to her son, her husband became erectile dysfunction, and Kyoka was raising her child with frustration. Kyoka's desire, which has been neglected for a long time even though she has a strong sexual desire, runs out of control. When her son's cock grew to adult size, she finally had a forbidden relationship. Kyoka began to seek her son from morning to night to clear her long-standing frustration, but her son, who inherited the lewd Kyoka's blood, was also unfaithful.
