Wang Lin runs a B&B, and the B&B is filled with all kinds of alien guests. Those guests respectfully call her the Lord of the Realm, which means the Lord of a Realm.
Each planet has its center, which is full of the power of time and space, and has the function of transmitting and receiving visitors from time and space. The existence of the center has different shapes, some are wild, and some are recognized by the Lord, just like the world of light, recognized by Wang Lin.
Complete short story~Arnold of Infinite Horror