Cheating Men Must Die

Both dramas are set within the world of a story and the FLs must change the story/their character in order to escape their tragic fate in the plot.

Both dramas are set within the world of a story.
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Both are mini dramas adapted from the same comic, in which the FL is in a fictional world with a mission.
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Both are mini dramas in which the FL is cheated on and betrayed by her fiancée and becomes involved with a man who helps her.