Six prodigies attend Kanezono Academy of Music, each with a mysterious past and a “color” tied to their soul’s melody. The story follows Ren Hayami, a withdrawn violinist who hasn’t played since his sister’s suicide. On his first day, he hears her melody echoing through the old concert hall—played perfectly by a girl he’s never met.
Soon, Ren and the other students are drawn into the “Symphony of Souls”, a ritual that binds their emotions to music. Every performance drains something from them—memories, feelings, or fragments of life itself. To graduate, they must each compose their Final Piece, but the truth is grim: only one can complete it, and the rest will vanish into their own unfinished songs.

As the Conductor dissolved, fragments of the past spilled into the chamber. Among them appeared Airi—transparent, smiling faintly.


Ren's bow trembled. "You're free… aren't you?"


Airi nodded. "You finished what I couldn't. The melody is whole again."


Ema's eyes filled with tears. "Then the academy—?"


Airi looked toward the ceiling as the faint red glow faded from the walls. "It will sleep now. Until the next generation dares to awaken it."


Ren lowered his violin, bow quivering. "Then this is goodbye."


Airi smiled softly. "No, Ren. This is your beginning."


And she vanished with the final vibration of the last note.


Chapter 49 - The Last Note