The Great Time Travel of Earth People

What would happen if everyone on earth wore it? Serious version: This is actually the story of the rise of an Earthling among all the Earthlings in the world. Normal version: A story about one man, one sword, and his journey through all the realms of China Funny version: Occasionally abnormal phenomena appear, such as a gay guy occasionally appearing, a funny guy whose luck is comparable to the protagonist, and a swordsman showing off occasionally.