Durch Leiden zu Freude - L.V. Beethoven.
Music is the light that illuminates people's hearts-- and that "light" was suddenly taken from the world. The world changed the night the black "Kuroya Meteorite" fell. Grotesque monsters known as D2 emerged from the meteorite and began to overrun the land and people. As the D2 were drawn to melodies people played, eventually "music" itself became taboo.
However, those who opposed the monsters appeared.
They are the "Musicart," girls who draw power from music. They possess the great operas and musical scores of human history and use them to defeat the D2.
With them are the "Conductors" who lead the girls.
The year is 2047. The United States has been devastated by the struggle against the D2. Takt the Conductor and Destiny the Musicart travel together to New York. In a world without music, Takt longs for it. Meanwhile, Musicart Destiny hopes to wipe out the D2.
Will the melody they produce together be joy or despair?