Daiki is a boy of marriageable age who lives with his parents. He begins to get excited by his mother Yui's daily panty shots and cleavage. One day, Daiki witnesses his parents' nighttime activities and his desire for sex explodes. He begs Yui to teach him about sex... and Yui readily agrees! With the consent of both parties, he loses his virginity to his mother, who has a voluptuous body with big breasts and a big ass that everyone envies! And from then on, Yui also becomes immersed in sweaty sex, craving each other for what was supposed to be a one-time thing... #ChiefP