Bathed in Blood

He was originally a battlefield ruler who retired to the mountains and forests. When the crisis came, he came out with a mission, but he embarked on a different journey. How will he choose when his beloved comes back from the dead and becomes his enemy? When his understanding is subverted, the continent is just a chess piece, and the human race is just a livestock, how will he break the game? A once-in-10,000-year catastrophe has come, and the major forces have been reshuffled, and witches, demons, humans, gods, and demons are fighting again in the world. Fight to become a god! The blood song of the three realms! On the vast land, who is responsible for the ups and downs?