Boku Katsu Life: Tomodachi no Otouto-kun to "Game Suru Naka" kara "Cosplay Sex Suru Kankei" ni Naru made

Yuika, a high school girl, became close friends with her friend's younger brother through a shared love of gaming. As they spent more time playing together, she realized he had developed feelings for her. Though Yuika thought he was too young for a relationship, she wanted to acknowledge his feeling