vsphim-h02502 Nữ Sinh Tập 4

The story you're describing matches the adult anime OVA series *Kanojo x Kanojo x Kanojo: Sanshimai to no DokiDoki Kyoudou Seikatsu* (Girlfriend x Girlfriend x Girlfriend: Heart-Pounding Coexistence with Three Sisters). In this series, Kakeru is adopted into a family with four sisters—Urara (cute and friendly), Rie (tennis player), Hikari (painter who owns a dog), and Aiko (tough motorcycle-riding fighter)—and each episode focuses on his sexual relationship with one. By the end of the fourth episode, Kakeru does not choose just one girl. Instead, he decides to continue his relationships with all four, embracing a harem-style ending where he stays with them as lovers. This fits the series' theme of multiple girlfriends, and the final scenes show him happily coexisting with all sisters without picking a single one. If this isn't the exact story you meant, provide more details for clarification.