Pindao Just Came Down the Mountain, Why Did Qingmei Turn into a Ghost?

When Yun Feng was ten years old, it was calculated that he was destined to be in trouble, so his parents sent him to a mountain to practice Taoism to avoid disaster. When parting, his little childhood sweetheart hugged him and cried bitterly, saying that she would marry him when he came down the mountain, and she would often write letters to him when he was on the mountain. In the mountains, Yun Feng could not escape the fate of being a question writer in a small town, and was admitted to the same university as his childhood sweetheart. After becoming an adult, Yun Feng was allowed to go down the mountain. He originally wanted to see his parents and his little green plum, but his parents informed him that his little green plum was missing! Yun Feng hurriedly went out to search, but in the end there was no clue. He wandered aimlessly. When he came to the place where they used to play when they were children, he suddenly saw a floating soul...