Guardians of the Heavens

A blood-soaked battlefield, a magnificent immortal palace, fallen supreme beings, a shattered underworld, and a mortal realm in decline.

This is an age of great strife.

Fate rests in the hands of the strong.

The war that has raged since ancient times is about to begin, and all the heavens will meet their final end.

(This novel starts slowly, so you can let it build up and come back when there's more to read.)