Loach over Longmen

A carp that crosses the dragon gate can become a real dragon because it is a carp. It is unique among thousands of aquatic animals. Looking at the thousands of years of human history, it is not the same. In troubled times, dragons and snakes rise from the land. After all, they are passers-by. The real dragon has its own fate. Let's see how many achievements a time traveler can make by surviving in troubled times by using the art of deducing the past.