The End of the World: My Train Can Travel Through Time and Space

Since that day, three special people have appeared in my life. One is a Chinese with a foreign name, Klaus, who always takes me to the end of the world in a train. One is a little girl named Shan Shui, who claims to be from fifty years in the future. She always likes to write to me through time and space, complaining about heaven and earth. Later, Klaus died, and I inherited his ring and drove a car through time and space to the end of the world. The little girl is not unreachable either. She always says she wants to visit the ancient sages and save the world... However, the most special thing is a person who calls herself a tough girl. She told me: No matter what the world becomes, what you want to protect is what I want to watch.