April 2016. The first April without Kaori Miyazono.
On the first day of high school, as Kosei Arima was thinking this, he met Asaba Yoshida, who was sitting in a wheelchair and had lost her memory. Asaba Yoshida looked a lot like Kaori Miyazono. But unlike the colorful Kaori, Asaba Yoshida's world held only shades of black, white, and gray.
It was as if he were entrusting his feelings for Kaori Miyazono to Asaba Yoshida. Kosei Arima wanted to fill Asaba Yoshida's world with color, repaying Kaori Miyazono for filling his own world with color.
And so, Kosei Arima, who had gotten into a music high school as he wished, Takeshi Aiza and Emi Igawa, who had entered the same school, Tsubaki Sawabe, who had enrolled at the girls' school next door, and Asaba Yoshida: what kind of echoes will their youth play?
(PS: I hope everyone can forgive me for going ahead and writing a sequel to Your Lie in April. This book is simply an expression of some of my own ideas, so I hope you'll understand. After watching the anime, I was just too frustrated! I had to express it in a novel!)