I Took a Game System to Ancient Times and Became an Immortal

He transmigrates to ancient times by accident, and a game System appears. He needs a vast amount of faith points to draw games. At first, he plans to pose as an immortal and trick people into giving him the points he needs. But when he sees bones strewn across the land and starving corpses everywhere, he changes his mind. In an age when ordinary people are starving, he decides that since he has the power to do so, he will change everything. He displays his power before the people of ancient times to earn faith points, and changes the world as he does. With those points, he draws games like crazy and gains great supernatural powers. Mu Jin resolves to let the Red Storm sweep across the world. Just as everything is going smoothly, he suddenly encounters another side of this world. On the march, someone reports seeing a strange person in an official uniform, leaping about and biting poultry and people? While exploring deep in the mountains, they suddenly hear a tremendous bellow from the forest. This isn't right. This is an ancient world in a parallel universe, isn't it? There shouldn't be anything like this. System: Who says your original world didn't have supernatural creatures and powers?