One Song, The Book of Last Night, and I Summon Yue Fei to Slay the Demon God!

This is a world where music reigns supreme, and developing music is its central pursuit.

There are countless tombs of gods in this world. Because they can devour everything, they are also known as black holes.

Within the black holes, many fallen gods have not perished, but instead wander as spirits.

The fallen gods have also lost their divinity and become violent and savage, earning them the name Demon Gods.

Black holes can appear anywhere in this world, and when one emerges, the Demon Gods within it are set free.

When Demon Gods who have lost their divinity walk among humans, they slaughter at will, staining a thousand miles with blood.

And so, two professions arose in this world: singers and composers.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.