I do not really like police dramas but tend to love them only if an undercover role is given. So can anyone recommend a drama where the main lead plays an undercover role, it could be either side meaning the police can go undercover with the criminals or the criminal can go undercover with the police. I also like it when the main lead doubts himself. Cruel City would be a good example of what I am looking for.
Also the drama itself doesnt have to be a police drama. City Hunter is also something I enjoyed and while it isnt a typical police drama it still involves aspects of going undercover.
Lastly dramas with secret identities. Although this isnt really considered going undercover it still has to do with hiding who you really are with another identity, hence why some undercover dramas deal with people with secret identities. Examples of this would be, Bridal Mask, Healer, Iljimae and of course the two dramas I mentioned before, both Cruel City and City Hunter.