What was it like to find yourself traveling through time? How does it feel when you find someone has traveled through time with you? How does it feel when you realize that you are traveling through an era but not a time and space? How does it feel to know that everything is just the result of an irresponsible person's caprice?
In short, the development of history is no longer what it used to be, and we have to wait and see what the outcome will be.