Go to the Abyss to Build Infrastructure

The vampire prince Simele traveled to another world and started in hell mode. The land in the abyss is barren and desolate. The monsters are all sallow and thin, and they can't even suck blood. The Prince was angry, defeated the Demon King, became his own boss, and vowed to conquer the human world, where he would be popular and drink spicy food! Demons: Lord Demon King, calm down, you can't beat him, you really can't beat this one, our magic numbers are not even half of those of human mages. Xiaoxi: Human beings are so capable of giving birth. It's great. We don't have to worry about food rations anymore. Let's go for it! Unexpectedly, before he climbed out of the abyss, he was beaten back by the human race. The prince learned the hard way, summed up the lessons, and decided to first increase the productivity of the demon world, improve the quality of life of the demons, and increase the number of demon mouths, and then attack the human world. Many years later, the prince was surprised to find that before conquering the human world, he had already made a fortune with the demon clan and had no worries about food and drink. Xiaoxi:? ? ? This is an advance receipt