After a car accident, Xiao Chengyu wakes up as the fourth... prince born to a consort confined in the Cold Palace. But she's a girl!
Her mother, a chemistry professor, has also come to this world and is being held in the Cold Palace. Unfortunately, the emperor isn't her father.
Maybe her father didn't come through?
A few months later, a memorial shocks Great Qi: the Prince of Jiannan has gone mad and is training troops with the intention of rebelling.
Xiao Chengyu panics. Why does this rebel's way of doing things sound so much like her father's?
A mother in the Cold Palace, a father in rebellion, and her disguised as a man. It's a nightmare from the start!
After weathering one crisis after another, the family of three is finally reunited. They resolve to build a good life, but things go a little too well. The long-impoverished regions of Lingnan and Jiannan become so prosperous and advanced that all of Great Qi envies them.
The person on the imperial throne watches, envious and resentful, and brands them rebels.
The advisors to the Prince of Lingnan and the Prince of Jiannan are delighted all night: At last, we've found a reason to raise our armies!
Xu Yun, son of the Minister of Justice, is a master strategist. Then a gay fourth prince appears and claims to be in love with him, making him the laughingstock of the capital for a time.
He keeps a low profile and pays no mind to gossip, but the fourth prince, who can't even write properly, sees through everything he does. He is intrigued by Xiao Chengyu's uncanny foresight and startled by her audacity. Slowly, he starts to think he might be gay. But the person who was demoted leaves without him.
Xu Yun helps the third prince seize the throne and rises to become a powerful minister. He stands above everyone and never loses his composure, until he receives a report that the Prince of Lingnan has been assassinated while leading an uprising. He braves the torrential rain and rushes to see this detestable person one last time, only to find a charming young woman with long hair in someone's tent.
He grits his teeth and sneers,