Takt and crew stop by a certain town. All of the young people had fled the town, leaving only the elderly. The residents happen to ask Anna and Destiny for help. Meanwhile, Takt wandered around town on his own and happens to hear a melody quietly resonating from an old bar. It was definitely the sound of music.

Anna and Destiny happen to see a town destroyed during their travels. D2s are awakening everywhere and attacking various towns and people, reverting the world back to four years ago, before Sagan's Declaration. As the threat from the D2s grew, Takt was obsessing over something. With a blank staff notation in front of him, Takt plays an imaginary keyboard as he desperately tries to create something.

Takt and crew finally reach their destination of New York. They reunite with Charlotte, Anna's older sister, who works for the Symphonica's technological development department. Charlotte begins to examine Destiny. Who is an incomplete Musicart. But then, Anna realizes something is wrong with Takt. The mark on Takt's right arm starts to spread to the rest of his body, and...

A giant Black Night Siderite starts to stir as Sagan hums a certain melody. The Black Night Siderite that grows as big as a tree starts to swallow up the New York Symphonica. Sagan has finally made his move to make his ambitions come true. As Takt and Destiny witness this eerie spectacle, they find out that Anna and Charlotte are still inside the Symphonica.