They don't care about anything else. One concept is the light around which their solar system revolves, and everything else is swallowed in darkness. The Noble Demons do not hate humanity. Quite the opposite; they do not even notice our existence. As long as their own obsession keeps burning, what happens to us is immaterial, however tragic.
Welcome to Sword of Symphonies.
Original music by Kathleen~!
Special thanks to Dillon, of Tales from the Tabletop, for guesting in this arc!