"When you can play this tune, play it for me..." Suzuno has always been searching for the boy who told her that, whom she met at a piano recital when she was small. After entering high school, she was chosen to play the piano to accompany a chorus competition. Suzuno started practicing with Aiba-kun and Fujisawa-kun from her class, but Fujisawa-kun told her that they used to meet when they were small...!?