Romance with Criminals

Ruler of Your Own World - male lead was a pickpocket

Bromance - ML is a 'gangster' /but he is nice/ and FL crossdresses as a man. 

Maybe check out some fo these:

• Healer - ML has a job that sometimes is against the law (stealing company info, getting into restricted areas and etc)  thus he is a wanted person on the police/law enforcement department [must watch]
• Beyond the clouds - ML is a conman/ gangster   [must watch]
• Cruel romance - ML is a gangster
• Innocent Man - ML is an ex-convict and gigolo  [must watch]
• Tree of heaven - ML is a gangster
• Karn La Krang Neung…Nai Hua Jai - ML is a member of a mafia
• Dr. Kkang - ML is a gansgter
• Legend of the Blue Sea - ML is a conman
• Yoona's street - FL is a pickpocket/thief
• Ugly alert - ML is ex convict who lied about killing someone to save his bro
• Legendary Witch - FL is was flasely imprisoned and thus became an ex convict  
• Heaundae lovers - FL has a father/family of gangsters/ ex-convicts
• Insoon is pretty - FL accidentally kills someone and was imprisoned
• East of Eden -  ML is a gangster /fugitive
• Green Rose - ML was falsely accused of crime, and becomes a fugitive but comes back with a different identity
• Romance is not really the focus, but there is ome form of romantic line
  • Heartless city - ML is a gangster/drug cartel boss [must watch]
  • A story of a man - ML is an ex convict
  • 38 tast force - ML is an ex convict / conman
  • Last - ML  is somekind of a conman
• Movies: 
  • My wife is a gangster (all 3 sequels) - FL is a gangster
  • Catch me - FL is a thief/cat burlar

thanks, i found some good dramas from this list

https://mydramalist.com/18459-cheewit-puer-kah-huajai-puer-tur

https://mydramalist.com/19968-karn-la-krang-neungnai-hua-jai

https://mydramalist.com/23492-cambrian-period

https://mydramalist.com/8898-lady-liar

https://mydramalist.com/129-a-man-called-god

https://mydramalist.com/291-time-between-dog-and-wolf-2007

https://mydramalist.com/7761-secret FL was the one in jail