In order to save her brother Yan Ziqian, who was falsely accused and imprisoned, Miss Yan Ruyu decided to disguise herself as a man and go to Beijing to attend the Spring Festival in her brother's stead. On the eve of leaving home, her father handed over an old jade pendant and told her to use it to seek help in case of danger. On the way, she was robbed by bandits and was killed by a She was rescued by a mysterious masked man, whose eyes were inexplicably familiar to her; after arriving in the capital, she unexpectedly reunited at the inn with Shen Moyan, her childhood sweetheart from ten years ago. He is now an editor of the Hanlin Academy, but he didn't seem to recognize her when she was disguised as a man; when filing a criminal complaint, she found that someone had faked his brother's name. After registering first, Yan Ruyu was forced to temporarily change her name to take the exam; the test questions in the examination room actually coincided with the contents of old books at home, and she suspected that this was a trap set for her; Shen Moyan approached her as an old friend many times to test her origins, and there seemed to be deep meaning in her words; the dispute between the powerful ministers in the court involved the Yan family In an old case, Yan Ruyu secretly investigated the truth while preparing for the exam; at a banquet, she was caught by Shen Moyan while dressing up as a woman, and he was shocked but did not expose it on the spot; Yan Ruyu realized that she had been involved in a larger political conspiracy, and Shen Moyan might be both an old friend and a variable.
