Human beings, like a few stars in the vast universe, appear insignificant and ridiculous in front of nature. However, in the thousands of years of shining history, there are always some people who travel up the long river of history. They will not get old, sick or die. They will always be a mysterious existence. People call them - time travelers.
There is a long-standing and mysterious legend in Lanhai City. It is said that if you encounter any difficulties, or if you cannot do something by yourself, just write a letter and send it to No. 46 West Street, and the Time Traveler will take over the order. No one knows whether it is true or false, and no one tries it.