Korean drama with smart and badass male lead

Please do you know a Korean drama where the male lead smart and badass like

Na Yi Je  in Doctor Prisoner

so... badass lead....hmmmmm:

The bridal mask ( in the first part of the drama) - historical, crime, drama, romance

Rebel: Thief who stole the people  - historical, crime, romance

Hidden Identity - crime 

City hunter - crime, romance

Liar Game - crime, drama

Time between dog and wolf - crime, drama

38 Tasc force - crime

Good bye, Mr. black - crime, familydrama

Local Hero - crime

The innocent man - drama, romance

Yong pal - drama, romance

Doubtful victory - crime, familydrama, romance

Gunman in Joseon - historical, drama, romance

Iljimae - historical, crime

Bad guys - crime

I hope this will help you to find a new drama.

Fights Break Sphere: Season 1

real smart, badass, strategic brain male leads and with anti hero charm:

• Cruel City  (N1 in modern dramas)
• Arthdal Chronicles (N1 in historical dramas, though it's not usual historical, it's like korean Game of thrones)
• The Rise of Phoenixes (historical Cdrama, and in that genre it has best ML, very smart strategic, badass and sometimes quite dark, also most smart strong FL as I remember in historical cdramas)

also very good ones, some of theme more badass, some of them more smart

• Lucifer it's SML but equally main lead, smart and dark, his revenge is masterpiece
• A Man's Story  - also SML smart badass almost villain, every character in this drama fights against him but he always wins, which is rare with SML anti heroes.
  
• Kill It  ML is anti hero contract killer
• Memories of the Alhambra 
• Flower of Evil 
• Mr. Sunshine  (I haven't seen yet but I know it's one of the best drama and ML) 
• Hello Monster 
• Bad guys  (not so smart but multiple badass characters)
• Chuno 
• The K2 
• Warrior Baek Dong Soo  SML is very very badass and charismatic anti hero, star of the show
• Doctor Stranger badass doctor
• Liar Game though ML is very smart and badass, I think star of the show is anti hero SML, amazing acting and unforgetable character
• Mad Dog 
• The Innocent Man 
• Time Between Dog and Wolf 
• Tribes and Empires: Storm of Prophecy 

 3GGG:

Arthdal Chronicles Part 1: The Children of Prophecy  | Parts 1-3,  especifically when it comes to the character: Ta Gon.

couldn't be more agree!

Defendant

Mad dog