The Classic of Mountains and Seas: My Mirror Opens a Portal to Another World!

While clearing weeds at home during the May Day holiday, Ding Xiaoguo finds a mirror. Thinking it looks fun, he puts it in his pocket. On his way back to the city, a car hits him, and somehow he ends up in another world. Starting with a cow he brings back to the real world, Ding Xiaoguo travels between the two worlds and gradually comes to possess an entire city in the other world.