Both are light historical/fantasy dramas with endearing FLs. Both FLs have an illness and are involved in matchmaking (either for themselves or others) as a result of their illness. Both dramas have a similar feel and tone.
Both are set in a historical/fantasy world which is a mix of ordinary people and people with special/supernatural abilities, and the main couple is one of each. Both FLs have a chronic illness.
Both are fantasy/historical dramas with a similar feel. Both FLs have a heart condition which means they have to be careful about falling in love/becoming involved with the ML.
Cross dressing Female lead going to an elite school for men. A lot of hilarity and sweetness as she forms friendships and eventually romance. Great chemistry between the leads!