Haruka Motoyama. A mother who lost her husband and is raising her son alone. Her charm lies in the striking contrast between her idol-like, pure appearance and her unexpectedly massive breasts. Her son resembles his late father more and more each day, growing steadily into manhood. As she imagines a future where she is embraced by him, the mother indulges daily in masturbation. The son, too, finds himself increasingly drawn to his young, big-breasted mother, consumed by desire every day. Eventually, the two overcome their boundaries and become lovers. The son experiences the forbidden act of inserting his cock into the very vagina from which he was born. An intense, erotic story where you can fully enjoy Haruka Motoyama's pussy in vivid detail.