Both dramas have one lead who can see ghosts and the other lead is a ghost with no memory, trying to recall their past.
Both dramas have a lead who can see ghosts and a character who is a ghost. Both dramas involve character growth for the lead(s).
Both are historical/fantasy dramas with the same actor as the ML portraying an emperor. The FL is an unfavored member of his harem who the ML dislikes at first but then slowly falls in love with her. Both dramas have magic/witchcraft, and at some point in the plot the FL ends up in another body. Both dramas have a similar tone/feel.
Both dramas are about a god coming to earth and meeting/falling in love with a mortal. Both MLs have had their power sealed and have a connection to red threads of fate, both FLs are spunky and endearingly upbeat and work in a job connected to the marriage industry.
Both are historical, although different time periods, and both FLs are chefs, while the MLs are powerful and wealthy. The two have a relationship that is half antagonistic and half attraction.
Despite the different settings, both are historical and have similar elements - the ML is in a position of higher power, the FL is a servant who cooks for him and his family, and the two initially have a bickering relationship.
Both dramas are about a ML with exceptional and supernatural bad luck who discovers a way to turn his luck around. In the process he falls in love with a school mate.
There is an amusing tribute to Goblin in a scene of Drunk In Good Taste.
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Both are short dramas centered around food and a friendship that turns to romance between the main couple.
Both are mini dramas with a human FL and a ML who has dog genes/characteristics. Both FLs have something of an unlucky life before they meet the ML.
Both are short-length dramas in which the ML/one of the MLs is a dog and has dog-like characteristics. Both dramas have a sweet/endearing tone, and features co-habitation.
Both are about the relationship between a human and a shapeshifter animal/human (cat vs. dog) who end up living together. Both have cozy workplace settings (bookstore vs. café).
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