![](https://i.mydramalist.com/XdbKqX_4t.jpg)
![](https://i.mydramalist.com/qYYLr2_4t.jpg)
While different time periods, both are historical dramas in which the ML is engaged or married to a cruel/unlikeable woman who then ends up replaced by an identical woman with a very different personality who he falls in love with. Both FLs have a matching jade token (either to each other or to the ML) and their switch/initial replacement was when they were young.
![](https://i.mydramalist.com/vXqVJ2_4t.jpg)
![](https://i.mydramalist.com/E5JPjb_4t.jpg)
Both are a Republican Era setting in which the intelligent FL teams with the detective ML in order to solve a series of connected murders with a recurring symbol/style left behind at each crime.
![](https://i.mydramalist.com/vXqXxg_4t.jpg)
![](https://i.mydramalist.com/XLVOp_4t.jpg)
Both are mini dramas involving one of the leads entering a dream-like world in order to help their health, with the other lead soon entering the world to help them.
![](https://i.mydramalist.com/vXqXxg_4t.jpg)
![](https://i.mydramalist.com/XonQn_4t.jpg)
Both are mini dramas involving one of the leads entering a dream-like world in order to help their mental health, with the other lead soon entering the world to help them.
![](https://i.mydramalist.com/Xdgl0X_4t.jpg)
![](https://i.mydramalist.com/RwdzE_4t.jpg)
Both are Republican Era mini dramas in which the leads are married and secretly leading a double life as spies or assassins, each believing the other is not involved in their profession.
![](https://i.mydramalist.com/Xdgl0X_4t.jpg)
![](https://i.mydramalist.com/RB3m2R_4t.jpg)
Both are Republican Era mini dramas in which the leads are assassins who are hiding their job from each other.
![](https://i.mydramalist.com/Xdgl0X_4t.jpg)
![](https://i.mydramalist.com/2ww21R_4t.jpg)
Both are mini dramas with rival assassins who marry each other, with each unaware of the other's secret identity.
![](https://i.mydramalist.com/Xdgl0X_4t.jpg)
![](https://i.mydramalist.com/XDzyp_4t.jpg)
Both are mini dramas with rival assassins who fall in love and marry each other, each unaware of the other's secret life.
![](https://i.mydramalist.com/wJ28db_4t.jpg)
![](https://i.mydramalist.com/e7ZDd_4t.jpg)
Both are historical dramas in which the FLs have their faces exchanged with another woman. Both MLs are generals and first met the FL when she had her original face.
![](https://i.mydramalist.com/wJ28db_4t.jpg)
![](https://i.mydramalist.com/jQ8Ab8_4t.jpg)
Both are historical dramas in which the FLs are betrayed, seemingly killed, and have their faces changed by a man who finds them injured and saves them.
![](https://i.mydramalist.com/wJ28db_4t.jpg)
![](https://i.mydramalist.com/XdbJwJ_4t.jpg)
Both are historical mini dramas in which the FL swaps faces with another woman and returns for revenge against those who wronged her.
![](https://i.mydramalist.com/jQ8Ab8_4t.jpg)
![](https://i.mydramalist.com/XdbJwJ_4t.jpg)
Both are historical mini dramas in which the FL swaps faces with another woman.
..........................................................
..........................................................