Sora Kurumatani has always loved basketball, but he lacks what is often seen as the most important asset in the sport: height. From the very beginning of his passion for the game, his short stature has been a challenge. However, this never stopped Sora from believing that hard work and persistent practice could prove his abilities, regardless of his physical disadvantage.
To fulfill his mother's wish, Sora enrolls at Kuzuryuu High School with the goal of joining the basketball club and competing wholeheartedly in tournaments. To his dismay, he discovers that the boys' basketball team is merely a hangout for delinquents with no real interest in the sport. Sora also learns that the Hanazono brothers, Chiaki and Momoharu, whom he befriends, have lost their once-fiery motivation to play.
Determined to breathe new life into the team, Sora challenges the boys to a match. His quick footwork and agile movements overwhelm them. Gradually, inspired by Sora's impressive skills, relentless effort, and unwavering dedication to basketball, the boys find their long-lost passion for the game unexpectedly reigniting.