In the prosperous and peaceful times, the people live and work in peace and contentment. Sheng Chumu (Xu Kai), the son of General Sheng Xiaojing, has been spoiled by his mother since he was a child. He is a famous dandy in Chang'an City. During a long journey to Guangzhou, Sheng Chumu met Fu Rou (Li Yitong), a lady from an embroidery shop, and fell in love with her at first sight. He pretended to be a knowledgeable man who was both civil and military, and vowed to win the beauty. After several contacts, Fu Rou realized that Sheng Chumu was actually unlearned and disappointed with him. Sheng Chumu was determined to change himself for love, learn military tactics and martial arts, and finally won Fu Rou's favor. The two who were determined returned to Chang'an. Fu Rou entered the palace as a female official by mistake, and Sheng Chumu was also forced to join the army. The two accepted the test for love, and also saw the responsibilities on their shoulders in the process of growth. They worked together to save the crisis of their country and contribute their own strength to the prosperity of the country and the well-being of the people.