"To save you, I will rewrite the score of destiny—even if it burns away my very life."

Yo Ishigami, a world-class conductor, died with a single regret: failing to save his first love, Mito, from a tragic fate and fulfill her dream of the Nationals.
Reincarnated into his younger body, he finds “The Tome of Distorted Fate”. It grants the power to rewrite history, but at a cruel price: every destiny changed burns away his own lifespan.

Now a student at "Yahagi-Kita" High, Yo picks up the baton to:

1. Take Mito and the band to the National Band Competition.
2. Prevent the "X-Day" tragedy claiming her again.

Standing in his way are legendary rivals: the fallen Invincible Dragon (Ryukai), the Tyrant of Resonance (Meiden), the Sonic Alchemists (Anjo-Gaoka), and the Precision Machine (Hamamatsu Kosei).

Yo uses his future knowledge to create a sound that shakes the heavens. But as he defies fate, his death draws near.

Can he conduct a miracle before his requiem is sung?