A once romantic prodigal turned around for Qin Wan and promised that if he could "keep his integrity like a jade" for three years, Qin Wan would marry her. It was almost time for the promise to be fulfilled, and Qin Wan felt very happy. However, when she was happiest, a frog suddenly broke into her life and changed her destiny. After accidentally kissing a frog, the frog turned into a prince, but what awaited her was really as beautiful as a fairy tale?