DLDSS-530 Nozomi Tanihara, Yukine Nakasaki

Hajime, the only son of a wealthy family, was raised with overprotective care. His mother, Nozomi, worried about her somewhat unreliable son, but one day he announced he was bringing his girlfriend home. Believing that his choice must be a kind girl, Nozomi warmly welcomed her. However, the girlfriend, Yukine, was beyond imagination. Her appearance and behavior were more than just typical of a modern young person, and she snapped, "Auntie, what kind of education are you giving your son?" From that point on, the family found themselves under the sexual education dominance of their son's delinquent girlfriend.