Itazura Choucho  

mischievous butterfly, Akugi Choucho, 悪戯ちょうちょ

A 1st-year student named Sakura attends a music high school where she enjoys playing the piano. She also has feelings of affection towards her friend Nanoha, who has always been fascinated by listening to Sakura play the piano since they were young children. As the annual competition for upperclassmen approaches, Sakura will need to balance her love for both music and Nanoha.