Modern day FL faints and finds herself in the past. ML seems cold at first but is intrigued by her and both fall in love.

In both dramas the plucky, outspoken FL ends up sharing a body with a weaker, more delicate girl who had an unrequited love for someone (ML vs. SML), and who eventually loses her life saving the FL. The lead couple initially dislike each other, but the ML becomes increasingly intrigued by the FL's behavior, leading to him falling in love, and eventually she loves him, too.

FL's spirit is in another girl's body.
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In both dramas the FL ends up in another girl's body, married/engaged to the original girl's husband/fiancée. The main couple are antagonistic at first but later fall in love.

Both are short dramas in which the FL is living in a different girl's body.
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Both are short mostly fluffy romance dramas in which a girl takes over the body of another girl and falls for the original girl's fiancée.

Both are lighter, shorter xianxia dramas in which half or both of the main couple were/are deities and reincarnate but reunite in their new life/lives. In both dramas there is a third deity who is trying to drive them apart and destroy the ML.

Both are short length mini dramas in which a modern day actress FL ends up in a historical game like setting in which she has a guide who helps her/gives her tasks to complete, and falls in love with the royal ML who is supposed to die in the story.

Both shows have a modern day FL who ends up in a historical game like setting in which she has a guide who helps her/gives her tasks to complete.

Both have a FL from the modern day entering a game or game-like historical setting in which she must complete tasks to return home, falling in love along the way.

Both have a FL from a modern/future world who ends up in the past, and a poisoned, expected to be short lived ML who she can help/save.

Both are lighter romance dramas with a poisoned ML who can be helped by the FL.
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