Across the sky and the earth, there are mountains and rivers, and rivers never stop. It can be said that there are precious treasures, strange people, strange things, and flowers everywhere. Back then, there was a beast named "Nightmare", which haunted the dark night. It was a divine beast in ancient times. Because of a dispute with Taotie, it left the temple and hid in the mountains and markets. This beast was the most greedy of dreams. It transformed into humans many times and went around stealing dreams, making dreams, and playing games in the human world. There are many secrets in the privacy of the world, so many people were indignant and threatened to kill it, destroy it, and smash it to pieces.