Ok, so Im looking for something similar to You're All Surrounded and The Girl Who can See Scents in the vein of the MC having either a secret past, secret identity, or something similar that he doesn't talk to his friends, the female lead, or basically anyone about (but it's ok if he has like, a secret confidant who knows all about it, like he had in You're All Surrounded). Maybe eventually the FL finds out about this, maybe it's a big point of contention between them, or maybe it changes the way they see them completely, either way. If it's a secret identity or something like that, I would prefer it not to be immediately revealed to the people it's being kept a secret from, like in the first episode or something, like in You're all Surrounded, no one really knew anything for 3 or 4 episodes.
Any genre, theme, or country of origin is fine. I do like shows with Cops as the MCs (both of the listed ones, Cheo Yong, etc), but it doesn't need to be a Cop MC, it can be anything, the secret identity/secret past type feel is mostly what Im looking for. I would strongly prefer there to be at least some romantic element to it