A kid picks up a saxophone and decides he's going to be the greatest jazz musician alive, no shortcuts, no compromise. The animation doesn't just show you his hands moving across the keys, it shows you the moment his doubt breaks and something unspeakable takes over. You feel the weight of every late night, every failed audition, every second he could've quit, compressed into two hours that hit like a punch you saw coming and took anyway.

Dai Miyamoto discovers jazz and becomes obsessed. A former high school basketball player, he picks up a saxophone and practices day and night, and after only three years with the instrument he leaves Sendai for Tokyo to break into the music scene. Life as a working musician proves hard, but Dai's passion and conviction gradually win over Yukinori Sawabe, a talented, classically trained pianist who is cocky and wary of Dai's big claims. Dai also convinces his friend Shunji Tamada to learn the drums. Together they form a trio whose sound is rough and unpolished but full of raw energy. As their music starts drawing attention from local audiences, a bigger question emerges: what does it really take to become the best jazz player in the world?