No Way, Dad… The Day My Petite, Slender, Busty Girlfriend Becomes My New Mom. Soa Fujisaki

'Toru (me)' and 'Soa' were brought together by a shared hobby, but Toru's strict father, Kunio, did not approve of their relationship. One night, a frightening incident occurred while Toru was away, and the terrified Soa inadvertently sought help from Kunio. At that moment, captivated by Kunio's strength and mature allure, Soa seduced him out of curiosity. Kunio hesitated, feeling the immorality of it being his son's girlfriend, but couldn't resist her young, erotic body, and they crossed the line.