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 The story follows Ren Hayami, a withdrawn violinist who hasn’t played since his sister’s suicide.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

The key Nagi had given Ren fit perfectly into a hidden lock beneath the stage. The door creaked open, revealing a narrow staircase descending into darkness. The air smelled of damp wood and aged parchment, carrying faint echoes of melodies long forgotten.


Nagi whispered, "This is where the first compositions of Kanezono Academy were stored. Only those tied to the music can survive here."


Ren hesitated, feeling the crimson thread around his bow pulse violently. "If we go down there… there's no guarantee we'll come back."


Nagi's violet aura flickered. "Then play carefully. Listen, and the melodies may guide you instead of consuming you."


They descended, each step vibrating with faint, ghostly harmonics. The hidden chamber awaited, brimming with unfinished symphonies and lingering souls.


Chapter 21 - The Hidden Chamber