A special project themed around "the mother I adore," featuring Manami Momosaki as the neighbor from the Ōyama household. However, both Mr. Mikio Ōyama and his son Jun turn out to be perverted father and son obsessed with big breasts. Jun cleverly exploits his position as a child, repeatedly touching Manami's large breasts, sucking on her nipples, and engaging in increasingly lewd behavior. He even enters the bath with her, openly expressing his intense desire for her body. Meanwhile, Mikio insists on sharing a bedroom, claiming it's his marital duty, and eventually forces his way into bed with her by performing a dogeza, leading to a violent assault. Just when the project seems on the verge of collapse, the crew captures shocking footage on the final day.