Xi Fei is the revered saintly princess of the country of Italy, and Yin Xi is the belle who is both civilized and martial. They have been childhood sweethearts since they were young, and they have been a match made in heaven. As time goes by, they are no longer the childish children they were. They have grown into a slim girl and a handsome young man. An accidental accident It is discovered that the relationship between the two has gone beyond friendship, and a secret love has already arisen in her heart. At this time, Xifei suddenly discovers that her half-sister, who has always made things difficult for her, has also fallen in love with Yinxi. What is even more unexpected is that Zhuo Ye, the prince of Mengdan King, wants to marry Xifei as his princess... What will be the fate of the four of them?