I Descend into Another World and Can Become a Mythical Human

[Wish fulfillment + Chinese deities.] Darkness descends upon the Nine Provinces, and demons run rampant. Humanity suffers terribly, and the gods people once believed in have long since vanished. The prestigious immortal sects are even using the people of the world as pawns, fighting over resources and seeking the path to immortality. Lin Ye, who transmigrated here, is reborn in the body of the Great Xia state preceptor, a man doubted by everyone. He is also caught in a desperate situation. Fortunately, Lin Ye comes with a Divine System. As the Great Xia state preceptor, he displays the power of the gods and takes on the forms of familiar deities. And so the Chinese gods begin to make their presence known across the Nine Provinces. “Disaster! Disaster! The Great Xia state preceptor has summoned a god! He's wielding a Fire-Tipped Spear and slaughtering the entire Demon Manor!” “Third Prince Nezha, that kid belongs to some faction! How can he be so terrifying? He wiped out an immortal ancestor all by himself!” “Can someone tell me who this True Lord of Clear Origin and Sublime Dao is? Is there anyone among you who can stop him?” “Why did you have to provoke that three-eyed monster? One strike from him pierced right through my immortal domain!” … When the Great Dao is finally unified, he looks back on the road behind him. Some called Lin Ye the state preceptor. Others called him the Lord of the Nine Provinces. … But countless beings across the Myriad Heavens honorably call him the, Celestial Emperor! (PS: I'm not good at titles or blurbs. Please read the story.)