Epic of the Green-Skin Monster

In the divine kingdom, the gods look down upon the heavens, herding hundreds of millions of living beings on the earth, harvesting the sweet fruits of their faith. Demons and devils lurk in the abyss, watching and observing, tempting the desires within people's hearts, coveting the souls of all things. Tens of thousands of years have passed, and countless races on the vast land of Feynman, for survival, have slaughtered, fought each other, deceived, and formed alliances, using their bodies and wisdom to make their races stand firm in the world, fighting to the death. Pseudo-DND setting, the settings are not exactly the same.