All marriages and fates in the world are determined by the red thread pulled by Yue Lao in Tianyuan Hall. In Tianyuan Hall, there are seven matchmakers accompanying Yue and Xian Weng. Yue Lao, who was usually not good at poetry, was also arty. He wrote a poem called "Jin Se, Moon, Pearl and Jade Smoke", which gave the matchmakers such fairy names: Hong Jin, Hong Se, Hong Yue, Hong Ming, Hong Zhu, Hong Yu, Hong Yan. The duty of matchmakers is to make the love stated in the marriage book smoothly turn into a happy marriage, eliminate the grudges in the world, and let all the lovers in the world finally get married.
The story begins when the youngest matchmaker has just ascended to immortality. Her earthly benefactor named her Lu Qingli, Yuelao gave her the name Hongyan, and the matchmaker immortal position was named Hongxiaoqi. Qingli became a matchmaker without the help of Xu Zhonglin, a man in blue. This annoying man has been following him since he became a fairy. Does he have ulterior motives or is he just a friend? Qingli was directly promoted to immortality from a flower. She does not know magic and has very poor magic power. If she wants to go down to earth to hold the red thread, she still needs to go through the compulsory training of Hong Xiaoyi and the test of entering the mortal world to help lovers form a marriage. Is Qingli qualified for the role of Hong Xiaoqi? After Qingli entered the mortal world, Xu Zhonglin followed her, and what happened was a ridiculous story. When Qingli claims that she is a qualified matchmaker, what will Qingli do if her friend leaves. How will Qingli respond when she unexpectedly encounters the reincarnation of someone from her past?