After getting drunk, Xiaonan accidentally entered the dream catcher of the dream hunter Lao Li and absorbed the dream spirit of a hundred years. The two went to the Dream Painting Academy for help, trying to draw out the dream spirit, but they didn't expect that Xiaonan was a dreamless person. Lao Li had to accept Xiaonan as his apprentice and teach him the way of dream catching. Under the guidance of the four teachers of pen, ink, paper and inkstone, Xiaonan inherited Lao Li's mantle, but Lao Li suddenly disappeared. Xiaonan went to the Miaobi Gallery to find Lao Li and became a security guard. Here, he met his senior sister Qian Muzi, the second senior brother Shui Miaomiao, the third senior brother Huo Yanyan and other partners, and lived a happy life with wonderful imaginations, but he didn't know that an evil force was getting closer and closer. Xiaonan and his partners must fight against the evil forces and learn how to become a dream master who is both a painter and a catcher.