Synopsis

A single photograph displayed on the desk of Nishimi Kaoru, now a busy physician, captures the smiling faces of three high school friends. Looking at it brings back memories of a life-changing summer ten years earlier. After transferring to a new high school, Kaoru has a fateful encounter with Kawabuchi Sentaro, a feared delinquent whom everyone at school avoids. Through music, the two form an unlikely bond – Sentaro as a passionate jazz drummer and Kaoru as a gifted pianist who has played since childhood.
 
Alongside Mukae Ritsuko, Sentaro’s childhood friend, the three spend their days together and develop a close friendship. As time passes, Kaoru finds himself falling in love with Ritsuko. However, he soon discovers that Ritsuko’s heart belongs to Sentaro. Struggling with the pain of this complicated love triangle, Kaoru continues to cherish the jazz sessions he shares with Sentaro.
 
But just as their friendship seems stronger than ever, tragedy strikes – Sentaro suddenly disappears from the lives of both Kaoru and Ritsuko, leaving behind unanswered questions and memories of a summer that changed them forever.