Zhang Yutang was originally a boy who picked incense in the upper world. One day, he was passing by in the air and saw a small green snake playing around the West Lake. It was free and unrestrained, green and lovely, with a delicate color. He accidentally smiled. Suddenly, he had thoughts of mortals, and was later told that the Jade Emperor demoted him to the mortal world and was reincarnated in the Zhang Mansion.
Purpose: to fulfill the love between Xiaoqing and Zhang Yutang.