emeraldarrows

Both are romances between an idol ML who has gone through some hardship and an ordinary person FL who has a secret off work life/hobby.

Same FL actress and director, same mix of humor, romance, and more serious moments. Both have a palace setting and a ML who isn't human (nine tailed fox vs. fictional character).

Same FL actress and director, same humor and style. Both have a palace setting. Both have a princess SFL and a scene in which she "torments" the SML.

Both MLs are supernatural animals rescued and cared for as a pet by the human FL. They then transform into a human and follow the FL across multiple lives, each one ending with the FL's tragic death, some of them including her marriage to someone else, all in the hope they can one day be with her.

Both are lighter historical/fantasy dramas in which the ML is a nine tailed fox and the FL is human.

Both are about someone from South Korea in Japan where they meet and fall in love with someone there.

Both are sweet romances between people of different cultures.
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Both MLs blame FL for the death of his family member, keeping her in his house and taking revenge upon her while being caught in a love/hate relationship with her.

Both are mini dramas in which the leads are in a love/hate relationship, with FL blaming the ML for her father's death and the ML a complex, morally grey character with a past connection to the FL.

Both MLs are unassuming guys who suddenly gain a superpower and find themselves fighting with bad guys and surrounded by a group of romantic prospects.

Both MLs are unassuming guys who suddenly gain a superpower and find themselves fighting with bad guys and surrounded by a group of romantic prospects.

Both are Japanese BLs about best friends, one of whom is secretly in love with the other. Both dramas have a similar vibe.