One day, when my mother, Miya, who has been lonely without her husband for many years, is preparing dinner, the loneliness of a woman comes up and she indulges in masturbation. And then, Miya attacks her eldest son, Atsushi, who happens upon the spot! Miya's libido, who knew the joy of immorality, can't be satisfied with Atsushi alone, but it also involves the second son, Souta, and drowns in pleasure. [*Bonus videos and bonus images are not included]