When a young musician's dreams intersect with the enigmatic world of CNCO, a tale of love, betrayal, and the power of music unfolds, challenging the very fabric of reality....

In a world where music is destiny, a high school student's life is turned upside down by a mysterious melody, leading her on a journey of friendship, betrayal, and the power of the euphonium....

When a human and an alien meet in a distant future, their love is tested by the boundaries of their worlds and a looming betrayal that could tear them apart....