Those Things in Myths

When the world first opened, three thousand gods and demons fought endlessly, and eventually both sides suffered losses. After the war between gods and demons, spiritual energy flourished, and powerful men from all races conquered each other, until the Demon King emerged from the sky, unified all races in the world, and established the Demon Court. However, before the Demon Emperor could completely defeat the East China Sea Dragon Clan and the Abyss Nether Clan, suddenly one day, the Demon Emperor disappeared mysteriously. The human race rose up to resist and drove the Demon Clan to the south of the Southern Barbarians...