Cheng Yanqiu, the princess of Maoyue City, found out that she was pregnant with her lover's child before she got married.
She tried her best to protect her chastity and secret, but she discovered a bigger secret about her consort.
And all the answers are hidden in the murder of the Zuo family with the Qingfeng Sword that shocked the entire Maoyue City three years ago.
Ps: Rewritten from the first episode. .