Kousei and Kaori arrive just in time for the competition, however without a chance to practice the piece how will Kousei be able to perform? And how can he survive on stage with the memories of his mother still haunting him?

It's Kousei's turn to take the stage, and everyone is waiting to see whether or not he will be able to play. How will he be able to perform with the memories of his mother still floating in his mind?

Kousei, Tsubaki and Watari visit Kaori in the hospital, but she insists everything is fine. Tsubaki reflects on her past with Kousei and considers if she has romantic feelings for him. Meanwhile, Kousei makes an important decision about his future.

Nagi and Kousei finally take the stage. Despite acting as Nagi's support during their performance, Kousei challenges Nagi to reach her full potential.

Knowing her time is limited, Kaori undergoes a risky operation, hoping to have the chance to play with Kousei on stage one more time.

The OVA focuses on Kousei, Emi, and Takeshi when they were younger, showing their troubles during their competitions and the beginning of their rivalry.