Complex character/mentality

Hi guys! any recommendations for dramas with complex characters/mentality similar to Park Bogum in Hello Monster or Park Hae Jin in Cheese in the trap? Not necessarily evil but just that their character/ their way of thinking is interesting.

should be  korean or japanese recommendations

Thanks! 

✔️ Kill Me Heal Me

✔️ Beautiful Mind 

✔️ Memoirs of a  Murderer 

✔️ I'm Not Robot 

✔️ It's Okay It's Love 

✔️ I'm a Cyborg but That's Okay

✔️ Remember (Nam Goong Min) 

✔️ Sensory Couple (Nam Goong Min) 

✔️ Galileo

✔️ ST: Scientific Task Force 

✔️ Because This is My First Life 

✔️ Circle (brother with glasses) 

✔️ Scholar Who Walks the Night (Gwi)

-The Innocent Man - Kang Ma Ru and Han Jae Hee' arc are delicious to watch. 

- My AJusshi - Lee Ji An's arc and redemption. 

 - Que Sera Sera  - Kang Tae Joo's arc, His redemption from being a jerk is delicious to watch. 

n no tame ni

confession (jmovie)

 Call Me Onee-sama:

liar game 1 and 2

slightly surprised no one recommended it yet. literally the definition of complex.

Misty- I thought Hye was complex as I didn't know what she was thinking or what her end game would really be

• Stranger

Bridal mask