Chen Jinzhi is forced into the Marquis of Yongning's household to bring good fortune to Xie Zhiheng, the legitimate son who is gravely ill. On their wedding night, their souls unexpectedly switch bodies.
The country girl Chen Jinzhi is forced to take on Xie Zhiheng's identity, posing as a refined young master in the marquis's household. She must learn etiquette, deal with the elders, and hide every slipup, with danger lurking at every turn.
The aloof young master Xie Zhiheng is forced to take on Chen Jinzhi's identity and become the “bride brought in to bring good fortune.” He must endure contempt, restrictive rules, and the unfamiliarity of her body, going from resistance to gradual acceptance. From mutual dislike and threats, they are driven to join forces, keep up the act, and cover for one another:
He teaches her how to be a young master, and she teaches him how to live as “her.”
In their swapped lives, he finally understands how hard her life has been;
She, too, realizes for the first time that even those high above everyone else can be trapped by circumstances.
As they disguise themselves, they protect each other and quietly fall in love. While searching for a way to switch back, they face the turmoil and crises of the marquis's household, ultimately coming to understand their true feelings and helping each other grow and heal.
