(enemy) guard soft for the (sheltered) princess?

Hello! I am currently watching The Long Ballad, and I adore the dynamic between Hao Du and Li Le Yan. Waiting for new episodes is painful, so I'm looking for something I can binge in the meantime.

I would love if it had a similar dynamic: he is the enemy or the henchmen of the enemy (openly or working in secret) that ends up falling for the sheltered princess he is either supposed to protect or overthrow. If he's not an enemy and just her guard and if she's not sheltered that's cool too. I love the pining involved in falling for someone you're not supposed to. My only requirement is that they end up together in the end.

Any country works; Korea, China, Japan, Thailand, Taiwan. They don't have to be the main couple either, just as long as they get enough screen time.

Please help ^v^

 Alexis Romanov:

Ahhh, I'm also watching The Long Ballad and loving it so far! I prefer the main couple though. I used to like the 2nd CP but they didn't develop that storyline until ep.26 and kinda of sped up the bodyguard's feelings once we jumped back in to their story. But I'm still interested in seeing how things unfold. And I looove the bodyguard x princess trope too haha. Here are 2 that I know with similar dynamics:

The Last Empress (kdrama) - Bodyguard and Empress

The K2 (kdrama) - Bodyguard and sheltered daughter(not a princess but she has that similar vibe and station as she's the only daughter of a politician running for president) 

I love the main couple too, the whole friends to enemies to friends (to lovers i'm assuming) is enthralling, I'm just a total sucker for cliche tropes.

I've seen the K2, but I'll definitely add The Last Empress to my list. Thanks!!