Overlord from Another World, Starting with Millions of Dead Soldiers

Do you want to conquer the SSSSS purgatory level dungeon just after building a city? Fortunately, he had a million dead soldiers at the beginning! The residents grow and the city lord benefits. There is no need to practice, just sit back and wait for the dead soldiers and residents under your command to conquer the dungeon to receive all the rewards. Seeing the territory become a big empire to cause trouble? Ye Yu waved his hand and a million dragon cavalry flew up from the sky, covering the sky and the sun. Looking at the frightened imperial army, Ye Yu smiled lightly and said, "Sorry, my lord is not under the control of any country!" Also known as: This city lord feels a little happy. Watching his subordinates attack the dungeon makes me feel like a god. The loyalty of his subordinates has deteriorated. What should I do? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.