The heroine, Man Yao (also known as Rong Le), is the eldest princess of Xi Qi. She is ordered to marry Prince Wu You of Beilin, but he rejects the marriage. However, their fates intertwine as they secretly search for the lost governance book of the Qin family, leading to a hostile yet fateful encounter. Unaware of Wu You's true identity, Man Yao gradually falls in love with him.
Amid the chaos, they uncover their true identities: Fu Chou is Wu You's biological brother, and Man Yao is actually Qin Man, the lost daughter of the Qin family. They realize they have long been entangled in an invisible struggle. Both Rong Le and Man Yao understand that in such turbulent times, they cannot even protect their own happiness and that of their loved ones.
In the end, Rong Le, Wu You, and Fu Chou set aside their personal grievances. With the selfless help of Rong Qi, they thwart the treacherous plots, stabilize the court, and each embark on new journeys in life.
This novel presents readers with a gripping tale of palace intrigue, love, and hatred, spanning decades. The compelling storyline immerses readers, making them share the joys and sorrows of the characters' fates.