Takt is in a hurry to reach the city so that he can play the piano again, even though his passion attracts the creatures he has come to despise. Searching for a means of stabilizing the pact between themselves, Takt and Destiny-alongside Anna-embark on a perilous journey to the Symphonica Headquarters in New York City. The same incident kills Anna Schneider's younger sister, Cosette, and brings Takt into contact with his Musicart, Destiny. Takt Asahina, an aloof piano prodigy, finds himself transformed into a Conductor following a spontaneous D2 attack. Humanity's only form of defense against the D2s are Musicarts, young women representing pieces of classical music and Conductors, the ones controlling them. A public decree banned citizens from playing any melodies, to prevent further casualties caused by the D2s' hatred for music-even now, in 2047, this prohibition is still in effect. The United States of America has been in chaos ever since the emergence of D2s, an invasive species originating from a black meteorite that fell to Earth. With no time to process the revelation that flips her world upside down, Vivy is catapulted into a century-long journey to avert the violent history yet to come. In a theme park where she hardly ever gets a proper audience, she strives to pour her heart out into her performances, bound to repeat it day after day-that is, until an advanced AI from the future appears before her and enlists her help in stopping a devastating war a hundred years in the making. Vivy, the first ever autonomous AI, is a songstress tasked with spreading happiness through her voice. Turning the clock back a hundred years, AIs are already an integral part of human society, programmed with specific missions meant to be carried out for their entire course of operation. In a desperate bid to prevent the calamity from ever occurring, a scientist bets everything on a remnant from the past. When highly evolved AIs set out to eradicate mankind, the carnage that ensues fills the air with the stench of fresh blood and burning bodies. As they grow closer, the two strive to support one another amid their struggles to forge a future for themselves. Shortly after they arrive in Tokyo, the girls cross paths again due to an unexpected coincidence that ultimately leads them to live under the same roof. Though heartbroken, Nana bravely looks forward and travels to the capital with the ambition of becoming a recognized artist. Meanwhile, her namesake is a solitary punk vocalist whose impassioned romance with her band's bassist, Ren Honjou, comes to a sudden end. Without letting herself be dismayed by Shouji's decision to study in Tokyo, Nana works hard to earn enough money and follow him there. The former has a cheerful and friendly nature, but her naivety has steered her romantic life astray until she meets her dependable boyfriend-Shouji Endo. With their hearts set on going to Tokyo, Nana Komatsu dreams about blissful love, while Nana Osaki aims for a successful music career. Departing from their respective hometowns, two young women with identical names are brought together in their pursuit of new beginnings.

Great anime intermission music