Soo I’ve just finished healer
And I really liked the concept where the male lead hides who they really are
Preferably them acting like a different person and has a different identity 
And I love the romance aspect too
If there’s any other kdrama similar to this please tell me thanks so much in advance!

terius behind me, which is currently airing

man to man

'Oh my Venus' just one of the classic best dramas!

city hunter  hide as professor to take revenge

man to man secret agent have many identities

cruel city under cover cop and  gangster

a love to kill ML hide his real identity to take revenge to FL and became her bodyguard

personal taste ML hide his identity to approach FL to take advantage of her father's  project work 

are you human ? robot take place of ML who is in coma

mask FL take place  of her identical rich woman and marry ML

Ahh thank u guys!