In a project called "The Mom You Admire Is Coming!", Manami becomes the mother of the Oyama family next door. However, both the father and son of the Oyama family are perverts who love big breasts. The son, Jun, takes advantage of his privileged position as a child to touch her big breasts, suck on her nipples, and even take baths with her, trying to satisfy his lewd desires. The father, Mikio, persistently begs her, "As husband and wife, it's okay to sleep in the same bedroom, right?", and even gets down on his knees and gets into bed with her, forcing himself on her. Just when it seemed the project would fail, on the final day of the project, the staff captured some astonishing footage...