It's a world hopping novel, there's an ABO arc where the MC becomes the FL's bodyguard. FL is queen or emperor. Both are alphas. FL has unstable pheromones due to an injury and required a bodyguard that could handle her losing control. MC gets kidnapped and breaks her wrist in order to get out of the handcuffs.
I Compete with the villain for performance So turns out it wasn't on shubaow or anything and i had to spend literally half a day going through jjwxc looking for it lol. I had actually ruled out this author immediately thinking it wasnt one of their works, so boy did that take longer than needed.