During the Changlong period of the Great Jin, Hua Yingting, the protector general of the country who had just defeated the enemy state of Jinpo, sent his only daughter Hua Liuli back to the capital. Despite being a girl, Hua Liuli grew up around her father and brothers in a military camp at the border and was blessed with both intelligence and martial arts skills. However, the capital was different from the border. On one hand, rumors were spreading about the Hua family's military power. On the other hand, the second prince, Ji Yuansu, was appointed as the crown prince despite not being the eldest son, but he showed no interest in governing the country. Hua Liuli, who got involved in a storm, chose not to play by the book. Instead, she played dumb and pretended to be fragile and delicate. She single-handedly beat other socialites and even attracted the crown prince and the prince of Jinpo, turning a political drama of succession into a ridiculous and sweet love story....

Shen Yiyi is an ordinary cook from the market. In order to repay a debt, she agrees to substitute for her good friend in marriage and travels to Chang'An in her stead. Along the way, she ends up in disguise as a gentleman and meets Yang Zi'an, a young man carrying out orders from the King. She also meets the sweet second prince Li Xinyuan, the high and mighty swordsman Dugu Muxue and the handsome flower boy Tang Jiuhua. In their pursuit of education, the five who bear secrets of their own learn to trust each other and become friends, thus embark on an exciting school life that brings them face to face with a mysterious case and corrupted officials...