I liked the premise and thought the identity change thing was pretty convincing. I liked her relationship with her brother.

BUT: The male lead is just a bully at this point. He's in charge of catching criminals and has an extended misunderstanding arc where he wrongly suspects the female lead because her various revenge-related rendezvous coincides with the activities of a genuine criminal. He's absolutely brutal towards her and she can't do much to fight back other than the occasional snark. HE isn't even a smart man, judging by how shit he is at extracting information even after resorting to torture. Meanwhile, SHE isn't exactly bright either, mainly because the plot needs her to be the reckless one so she could get caught and give the male lead an opportunity to assert his dominance. Yikes, I'm not looking forward to them eventually becoming a couple. Neither am I looking forward to watching her seek her revenge, so far, she seems to be good at two things, (1) using her newfound station to bully those who wronged her in her previous identity and (2) enduring abuse from the male lead 'interrogator' until her new brother shows up and gets absolutely furious at the man