Lacking what is considered the most important asset in basketball, Sora Kurumatani has struggled with his short height since the inception of his love for the game. Despite missing this beneficial aspect, Sora's unwavering drive never allowed his small stature to dictate his ability to play, believing strongly in trying his hardest and persistently practicing to prove his capability. In hopes of satisfying his mother's wishes, Sora enters Kuzuryuu High School to become a member of the basketball club and compete wholeheartedly in tournaments. However, Sora is disappointed to find out that the boy's basketball team is nothing but a retreat for punks who have no interest in the sport. Sora also comes to learn that brothers Chiaki and Momoharu Hanazono—whom he becomes acquainted with—have also lost their once spirited motivation to play. Determined to revive the basketball team, Sora challenges the boys to a match against him, where his quick feet and swift movements overwhelm the group. Gradually affected by Sora's impressive skills, sheer effort, and tireless devotion to basketball, the boys unexpectedly find their burnt-out passion for the game rekindling once again. A stout, weak, yet highly passionate Sora Kurumatani enters Kuzuryuu High School with hopes that he'll fulfill his mother's wishes to dominate his first high school tournament. However, the basketball club—turned den for delinquents—does anything but play basketball! Its club members, Momoharu Hanazono, a skilled blocker who can do power jumps but is horrible at shooting, and his twin brother Chiaki, a talented point guard, has also lost interest in the sport. With just one game overwhelmed with adrenaline rush and excitement, and Sora's pure love for the game, the youth's burning out spirit for basketball rekindles.