Sagu Aoyama is a light novel writer who won the Silver Prize at the 15th Dengeki Novel Prize for Rou Kyu–Bu!. Aoyama is credited with the original stories for Ro-Kyu-Bu! ~ Fast Break!, Ro-Kyu-Bu! SS, Ro-Kyu-Bu!: Tomoka no Ichigo Sundae and Angel's 3Piece!.