It seems that her mother, Ayano, is having an affair... Kosuke, who cannot forgive his mother's infidelity as a son, decides to punish Ayano. The method is training with a stick of meat. Knowing that Ayano, whom he respected like his mother, was an obscene woman, Kousuke began to have a twisted desire. If you attack sleep and restraint and deprivation of freedom, deep throat, strangulation and rough insertion. Ayano, who has succumbed to Kosuke's carefully trained play and powerful vaginal cumshot, is forced into a humiliating master-servant relationship with her son.