Light novel like Imouto no Tomodachi no Bijin Yankee JK: Sekenshi Suru Sugite Sewa wo Yaiteitara Horeraremashita

About Imouto no Tomodachi no Bijin Yankee JK: Sekenshi Suru Sugite Sewa wo Yaiteitara Horeraremashita

by Maripara

Also known as: 妹の友達の美人ヤンキーＪＫ　世間知らず過ぎて世話を焼いていたら惚れられました, I was taking care of my sister's friend, a cute high school girl, and then we liked each other.

The room of Tsukasa, a college student with no romantic experience, has become the hangout spot of his sister and her delinquent friends. One day he finds a bulge in his bed and after he pulls off the blanket, the most beautiful of his sister's friends, Erika, is sleeping there. "Oh sorry... I'm very sleepy because...