Stick to the Script! (2021)

Both are short dramas in which the FL enters the world of a story and ends up altering the plot, sometimes intentionally. She also ends up falling in love with the villain of the story.

The main character ends up inside a drama or story and ends up changing the plot. Both are short fun Chinese dramas with a similar vibe and neither plot takes itself seriously.

Both are mini dramas with the FL coming from the real world into a drama and messing up the story while falling in love with one of the characters.

Both are short dramas in which the FL is in a fictional story (tv drama vs. manga).
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Both are short length dramas in which a real world FL enters a fictional historical world and falls in love with the ML.

Both are mini dramas in which the FL enters a fictional world and falls in love with the villain of the story.

Both are short dramas in which the FL enters the world of a story and ends up altering the plot, sometimes intentionally. She also ends up falling in love with the villain of the story.