Stand-In Princess

Two sisters with the same appearance but different personalities. The elder sister is a secret agent of an enemy country. In order to complete the task, she pretends to be a rich man and marries into the prince's palace. However, her identity is revealed by her younger sister. Through her own efforts and wit, she helps the prince step by step and finally becomes the princess. They run towards a new future together and forge a marriage. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.