Both FLs pretend to be eunuchs to stay by the emperor's/king's side. Both MLs have an initially cold personality but are very loving, both FLs are high-spirited.

Both are mini dramas in which the FL enters a fictional world in which she must repeatedly attempt to assassin the ML in order to finish the story and go home.

Both are mini dramas in which the FL enters a fictional world in which she must repeatedly attempt to assassin the ML in order to finish the story and go home.

Both are mini dramas in which the FL is betrayed and returns for revenge by becoming a concubine of a powerful older man, becoming entangled with the ML, that man's son. Both are Republican Era set mini dramas.

Both are mini dramas in which the FL is betrayed and returns for revenge by becoming a concubine of a powerful older man, reuniting with the ML, that man's son, who she loved years ago. Both are Republican Era set mini dramas.

Both are mini dramas in which the FL is betrayed and returns for revenge by becoming a concubine of a powerful older man, reuniting with the ML, that man's son, who she loved years ago. Both are Republican Era set mini dramas.

Both are mini dramas in which the FL is betrayed and returns for revenge against the man she once loved by marrying his father/father-in law.

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.