Both are historical dramas in which the FL is an unfavored identical twin who ends up swapping identities with her dead sister and marrying the ML.

Both are historical mini dramas in which the FL is an identical twin, and due to it being illegal and punishable by death, has been hidden her own life. When her sister dies or is presumed dead, she is forced to pose as her and marry the ML.

Both FLs are bandits/thieves who swap identities with another girl and become involved with the ML, falling in love along the way.

Both FLs are bandits/thieves who take on false identity and enter the house of the wealthy or royal ML. The two soon fall in love.

Both FLs are bandits/thieves who swap identities with a noble woman and enter the palace where they and the prince fall in love.

Both FLs are thieves who swap identities or bodies with a wealthy girl and become involved with the ML.

Both FLs are bandits/thieves who swap identities with another girl and become involved with the ML, falling in love along the way.

Both FLs are bandits/thieves who take on a false identity identities and marry the ML. The arranged marriage eventually turns into true love.

Both FLs are bandits/thieves who swap identities and marry the ML. The arranged marriage eventually turns into true love.

While very different plots and different countries, both are about an outsider ML who becomes determined to bring justice to a group of suffering people against indifferent or evil powerful people. Both end with a depressing tone.

Both are Republican Era mini dramas set in a town where murders and wrongful deaths have taken place, with a smart FL and the ML working together to solve the cases.

Both are short length Republican Era mystery dramas with a reporter FL and a small town setting. Both dramas have a supernatural/horror vibe.