Ok so this may seem like a weird request, but do you guys know of any dramas where the main character is a criminal, such as a serial killer? I've always loved detective-type dramas where they're chasing a serial killer or something to that effect, but I've been wondering what it would be like to see a drama the other way around. Thank you!

Gap Dong (serial killer)
Kurosagi (swindler)
Bad Guys (hit man/gangster/serial killer)
Ouroboros (gangster/killers out for revenge)
Monsterz (jdrama - killer)
Monster (the 2014 korean movie - killers)
Joker Yurusarezaru Sousakan (kills criminals)
38 Task Force
Legend of the Blue Sea
I'd recommend:
Siren (jdrama, female serial killer, really suspensful until the end)
Byakuyako (jdrama, both male and female lead have to live like criminals because that's the only way for them to live and they are constantly chased, beautfiful drama, there's also a movie but it's not as good as the drama)
Death Note
Kaitou Tantei Yamaneko
Boku no Yabai Tsuma
Maou
Nigeru Onna (to a lesser extent)