Qin Yuan, a modern-day heiress and head of a powerful family, transmigrated into the body of an unappreciated princess sent to marry into the Zhou Kingdom, the daughter of a princess confined to the cold palace.
The body had originally been that of a baby boy, but his mother used a forbidden drug to forcibly alter his constitution and disguise him as a girl. He survived that way for sixteen years.
Just as the Qin Kingdom, his mother's homeland, rose to power and came to take him back, they were ambushed on the journey. The original owner of the body died, and Qin Yuan returned to life in her body.
When she woke, Qin Yuan discovered that she was not only in dire straits, but also bound to a [Power Struggle Scale System].
The System told her: If she wanted to survive these chaotic times and reclaim everything, she had to keep playing this "cat-switches-with-the-prince" charade to the very end!
And so, the Zhou Kingdom's imperial family gained a frail, breathtakingly beautiful "impoverished hostage" who seemed harmless.
He advanced his plans step by step, entering the political arena as a man and joining forces with his brooding, sinister cousin, the Crown Prince, to contend for power.
Everyone said the hostage was weak and easy to bully. Only the Crown Prince knew that deep down, he was the sharpest blade of all.
Until one day, Qin Yuan finally reclaimed her male body and rose to dominate the court.
The Crown Prince cornered her against a wall, his gaze burning: "We agreed to join forces and conquer the realm. How come you left out the part where you give yourself to me?"
Qin Yuan gave a cold laugh and lifted his chin with her folding fan. "Your Highness, you got the better end of this bargain."
Theme: Even in adversity, take control of your own destiny. Women and the disadvantaged can possess the talent to shape the world, break through prejudice, and rise to the pinnacle of power.