Because a wedding in the palace led to elopements and murders, four young girls with different personalities embarked on the road of searching for the missing person. After going through many hardships, one was the seventh princess with superb medical skills, the other was the eighth princess with great literary talent, the other was a princess who loved exploring outside the palace, and a maid with good martial arts. After analyzing the events layer by layer, a shocking conspiracy was finally discovered. . . Let's hit the road together!