Makoto was disturbed by the lascivious voice of his mother, Miki, coming from the bedroom. He's aware that his parents are planning to have another baby, but he can't bring himself to support it. What wells up is not the joy of having a new family member, but jealousy of his father for making her mother utter such an obscene voice. And he was so possessive that he didn't want to hand over his mother to anyone. Every time I hear the voice of my parents working night after night, my distorted feelings grow stronger. And finally, Makoto carries out his forbidden plan. It was to fill Miki's vagina with his own sperm and expel her father's sperm.
