Mujikaku na Osananajimi to Kyoumi Honi de Yatte Mitara The Animation 03 | 無自覚な幼馴染と興味本位でヤってみたら THE ANIMATION 第3巻

Hiroki had sex with his childhood friend Meiko out of curiosity, escalating their physical relationship. Unconsciously, his inflated possessiveness hurt Meiko, and the distance between them grew. Just then, he witnessed her walking home with a male classmate... Hiroki, blaming himself and half-resigned, couldn't give up completely and decided to chase after Meiko, who had gone to the summer festival...