: Natsuo struggles to process that his teacher (Hina) and the girl he had a one-night stand with (Rui) are now his step-sisters.
According to IMDb's Parents Guide , this episode—and the series in general—contains: Domestic na Kanojo Episode 2
: Rui confronts Natsuo about their past encounter, establishing clear boundaries for their relationship as siblings moving forward. Where to Watch : Natsuo struggles to process that his teacher