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.
A bunch of them just 
showed up outta nowhere.
ظهرت مجموعة منهم فجأة
Aus dem Nichts tauchten sie damals
einfach zu Dutzenden auf.
Aparecieron en grupo sin previo aviso.
Aparecieron en grupo sin previo aviso.
mais un jour,
une horde de D2 a débarqué.
Ne sono spuntati un sacco dal nulla.
De repente, apareceram vários deles.
Но тут эти чудища целой оравой объявились!