B Group no Shounen One evening after school, Sakuragi Ryo runs into a scene of three delinquents surrounding a girl. He was hoping he wouldn’t have to intervene, but the girl was in desperate need of help. The girl he just saved happened to be the prettiest girl of his high school, and now she wants to repay him for saving her. Ryo now must take all measures to not attract the attention of the rest of the school to stay in the “B” ranks.