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 The story follows Ren Hayami, a withdrawn violinist who hasn’t played since his sister’s suicide.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 chamber still quivered from the last recital. Haru's absence hung like a ghost. Ren tightened his grip on his violin, crimson threads flickering erratically.


Ema placed her hand over his. "You can't play while you're breaking," she whispered. "But we can't stop either."


Ren met her gaze. "If this melody demands everything, then I'll give it. Every memory, every heartbeat. I'll finish what Airi began."


Their auras merged, crimson and silver forming a shimmering core. The melody started again—slowly, painfully, echoing Haru's final note as if refusing to forget her.


This time, they weren't playing to survive. They were playing to defy fate itself.


Chapter 46 - The Crimson Oath