Replying...
Intro. The world was created by ancient gods. One of these gods rebelles against the other ancient gods and reigns as the demon king. The ancient gods seal the Demon King, but they run out of energy and end up sleeping for a long time. After a long time, the sealed demon king has been revived and the world is engulfed in darkness. As a chosen by the gods, you (player) set out on a journey to defeat the Demon King, with legendary heroes as your companions.

This is a dark forest

@SilverEyes