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 The story follows Ren Hayami, a withdrawn violinist who hasn’t played since his sister’s suicide.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.

Ren approached the piano. Each key he pressed responded with a ghostly echo, faint hands seeming to press down in tandem. Nagi's violet aura flared.


"Do not play recklessly," Nagi warned. "The academy listens, and it may strike back."


Rei appeared from the shadows, her deep blue aura curling around the room. Though she still could not speak, her thoughts filled Ren's mind: Some music is meant to be feared. Some melodies are death.


Ren's bow hovered over his violin, crimson threads twisting toward the piano. The first note rang out, resonating with the unfinished melody, intertwining past and present.


The room trembled. Shadows stretched along the walls. Somewhere in the back of the chamber, faint whispers rose into harmonics, almost like a chorus of the vanished.


Chapter 23 - The Whispering Keys