Xie Jiumei, the ninth princess of the Chu Kingdom, had the best calligraphy in the world, but she was frail and sick. An expert predicted that she would not live to be sixteen years old since she was a child. Therefore, she did not cherish life and felt that life and death were of little significance. Living the present life well was the most important thing. So he secretly left the palace and played around. When she was fourteen, Qin Lingyu appeared and taught her the meaning and value of life, and they fell in love. But the good times did not last long. Qi State attacked Chu State. Chu State was unable to resist the powerful Qi State. Qi State asked for a marriage with the Nine Princesses in exchange for peace. However, the King of Chu had already seen the ambition of Qi State. Even if he married a daughter, he would not be able to buy peace. Instead, his beloved daughter would suffer humiliation. So he flatly refused and vowed to live and die together for the country. When Qi attacked, Prince Chu asked Qin Lingyu to take the ninth princess away and go to Yuzhi Mountain to seek refuge with the mysterious Yushan sect. Encountered a chase and interception on the road, Qin Lingyu was seriously injured, and finally found Yuzhishan, but Qin Lingyu died of his injuries. Before she died, she told Jiu Mei to live well, live hard on behalf of herself and her deceased relatives, and not to think about revenge. Jiu Mei was deeply hit, and eventually she gradually regained her confidence in life under the guidance of Bai Mu, the head of the Yushan Sect, and his wife Qu Yunhua, a miraculous doctor. She joined the Yushan Sect and devoted herself to studying medicine with Qu Yunhua, becoming his close disciple under the pseudonym Xiaojiu. Four years later, Xiao Jiu is ninety-eight years old. His medical skills are getting better and better, but his martial arts skills are mediocre. Peaceful and beautiful days are always short-lived. The power struggle of the new dynasty has drawn Xiao Jiu into it again. In this intrigue and intrigue for imperial power, who will Xiao Jiu meet and what will happen to him?