Three girls from Nanashi’s class are infatuated with him, making him feel uncomfortable yet excited. After the girls seduce him at his house, Nanashi becomes involved in a sexual experience with them.
僕にハーレムセフレが出来た理由, Boku ni Harem Sexfriend ga Dekita Riyuu, Boku ni Harem SeFri ga Dekita Riyuu, Boku ni Harem Sefure ga Dekita Riyuu
