A girl who can't read music enters a competition against trained musicians because a fairy decided she was worth breaking the rules for. The show knows the real competition isn't about winning, it's about five different boys who each show her a different reason why music matters. By the end, you're not rooting for her to get the trophy; you're rooting for her to figure out which of them she actually wants in her life.
Hino Kahoko attends a prestigious school split between two worlds: the Normal Branch where ordinary students study in grey uniforms, and the elite Music Branch where white-clad prodigies train from childhood. The school's annual competition traditionally belongs to Music Branch students, so when Kahoko somehow spots a mischievous fairy named Lili, everything changes. Being the only Normal Branch student who can see him, she's suddenly selected to compete. The catch: she has no musical experience whatsoever. Lili hands her a magical violin that responds to genuine belief and determination rather than technical skill, leaving Kahoko to figure out if she can actually play. Now she faces seasoned musicians who've trained for years, classmates who resent her intrusion, and her own crushing self-doubt. Between rehearsals and performances, Kahoko discovers that talent isn't everything and that passion can bridge impossible gaps. Her journey through the competition becomes less about winning and more about finding her voice in a world that never expected her to have one.