The most beloved little princess in the heaven is playful and seeking excitement and sneaks down to the modern world to experience tribulations. She meets the young master of the water tribe who also fell to the mortal world due to injuries. When they first met, she thought he was a monster and fought. He avoided and laughed and explained that he had never harmed anyone. The two met each other in modern society and helped each other to kill demons and finally fell in love. What kind of secret is hidden behind a painting? What are the consequences of her negligence? What kind of sparks will be sparked when they meet again after a successful tribulation?