Chronicles of Chaos Travel

Why is the abandoned mental hospital echoing with singing? Why is the water park so crowded late at night? Where did the swarms of Ni brothers come from? What was the first thing an ancient emperor did after being resurrected? Who is the culprit that caused the world to travel? ... The time travel of Xu Tao, an ordinary unemployed young man, gives the answer to all this. "I just want to pet a cat!"