Become a mayor from today

Liu Feng unexpectedly has the ability to travel back and forth through other worlds, and also has an inner space, acting as a second-order dealer in two worlds.
When he bought a city in another world with a glass from the earth, he began to live as a nobleman in another world as a city lord.
This is a cold weapon and wonderful otherworld. The cat-eared girl, the fox-eared girl, the rabbit-eared girl, and the elf princess that have never been seen on earth... In this other world, Liu Feng can see it at any time.
Princess: Liu Feng's city is the happiest city in the world.
Princess: I absolutely want to move in, even if I give up my status as a princess.
University Bachelor: The technologies and concepts used in Liu Feng's city are 1000 years ahead of the world.
King: There is the tallest building in the world, where the strangest things in the world are gathered, and there is the richest and most magical city in the world. ...