Four years had passed since Sagan's called a truce with the D2s. Music was still taboo throughout the world, and melodies ceased to be heard. Somewhere in America, which was now a wasteland, a little boy who grew up not knowing what music is hears the melody from a piano. The one playing it is a young man with black hair named Takt. And then, a deformed creature known as a D2 and a girl named Destiny, who is armed with a sword, appear as though they were lured in by the melody.

Destiny is terribly cruel. But no matter how much misfortune the gods torment me with, I will face my destiny. Because of that, I fought, and I fought, and I fought some more... And then, I finally found my answer. There truly was joy beyond the pain. Now, it is time for the performance to begin. I shall now wring destiny's neck. "From a certain man's memoirs"