emeraldarrows

Both MLs are weak and on a quest, FLs are strong (brains & brawn sort of relationship). Both dramas have pretty aesthetics.

Both are wuxias with beautiful aesthetics. The FLs are strong and the MLs are suffering from a cold poison.

Both MLs are related by marriage (step brothers vs. in-law uncle/nephew).
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Both FLs are forced to pretend to be male in order to reign and married to a woman who doesn't know their secret. The ML is someone the FL met years before.

Both are mini dramas with women working together to take revenge upon a lying, evil man with many girlfriends/wives.

Both are GL short films about an interview between two actresses who have fallen in love while filming a drama.

Both are heartwarming little stories of people riding a bus.
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Both are xianxia (but set on earth) dramas in which the FL rescues the non human ML and he falls in love with her, faithfully following her everywhere. Both FLs are wounded by their pasts and MLs are puppy like.

Both are mini dramas in which the FL complains about a work of fiction (book vs. drama) only to be pulled into that world and fall in love with the ML.

In both, one of the leads has very bad luck and discovers by getting close to the other lead who has very good luck, their luck improves. This results in them pretending to be in love with this other lead.

Both are historical dramas and the FLs are an inversion of each other - Maids is about a noblewoman who becomes a slave, and TToLO is about a slave who becomes a noblewoman.