Both dramas are short length and have..

+ Bodyguard ML, protective ML
+Rich FL
+ Hidden agenda
+ Nice kisses ;)

Personally, I liked Forever Love better, cause it had a more dramatic plotline..

Both drama feature..

+ Nice MLs
+ Rich ML - poor FL plot
+ at least one cute little kid
+ HE :)

+ both are historical short dramas
+ In Both, the FL is “infected by a phenomenon”
+ in both, blood plays an important role

If you like the idea of an imperfect main character, you might also like „Where Stars Land“

Similarities:
+ Romance combined with workplace setting
+ Disabled main character
+ Insecurities
+ Childhood crush
+ Serious, mature ML

+ Both are short length series in a historical setting
+ Both feature a hidden agenda
+ Both include FL feeling like ML betrayed /will betray her
+ There’s another similarity which I can’t list cause it would spoil both dramas

In both dramas..
- the roles of ML feel really similar (it’s the same actor, and the same characteristics)
- ML is responsible for investigating cases
- FL assists him.
- they need to disguise themselves while investigating.