after the Maiho Music Competition when Kaori receives a letter in the mail: There's going to be a gala concert to celebrate the winners, and even though Kaori and Kosei didn't advance, they're invited to perform! Confident they can leave a lasting impression, Kaori seizes the chance to order Kosei back onto the stage with her. The ultimate duo that moved an entire audience's hearts will perform once more, and people are buzzing with anticipation. Yet Kosei seems listless and uninterested in the festivities. Can Kaori and Kosei get their act together in time?!