emeraldarrows

Both dramas feature nine-tailed foxes.
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Both are historical mini dramas about nine tailed foxes with a demon-hunting male character who is trying to capture/kill the nine-tailed fox.
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Both are mini dramas with a seamstress/embroidery skilled FL who is kicked out her home at the beginning (by MIL vs. husband) and finds a circle of friends/support.

Both are historical mini dramas in which the FL dies or is presumed dead and returns for revenge on those who wronged her.

Both are mini dramas with a spy FL.
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Both are mini dramas with a spy FL.
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Both are mini dramas with a similar tone and feel. Both leads seem to have a past connection, and the FLs have a false identity or motivations as well as a distinctive scar.

Both are mini dramas with a historical setting and tons of intentional anachronisms. Both have a similar ridiculous and quirky humor and tone. Both also have a mostly male cast involved in helping the FL.

Both are mini dramas with the same ridiculous, anachronistic, and zany sort of humor.
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Both are mini dramas with the same ridiculous, anachronistic, and zany sort of humor.
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One is season 1, the other season 2.
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Both are mini dramas with the same ridiculous, anachronistic, and zany sort of humor in which the FL ends up working with the ML(s) to accomplish her goals.