IKai To Sama

I just finished it. And i totally loved it even tho i'm a hard to satisfy kind of guy. Please can someone suggest me something like this?

not at all ! Sun min shik is a pure ISTJ, he's 100% an S cuz Dr.Na always beats him by bringing ideas that are out of the box, things an S can't expect. he's organized , also he is introverted cuz you can see how Dr.Na is using his environment to his benefit while Sun min keeps isolating himself from the prison. Dr.Na keeps getting people to his side ( like prisoners ) cuz he knows he's gonna need them later, while sum min doesn't care

na yi je is text-book entj. i'm an intj and i see many similarities between me and Dr.Na and the way he acts, but the key difference between intj and entj is that: intj works alone while entj can use people for help ( which is what Dr.Na does mostly all the time )

I really liked this drama, even tho i'm not really a big fan of k-drama generally ( non-mature characters, forced romance...etc ) but can you suggest me a similar drama that has smart male lead like Dr.Na ?

Trust me, searching for the music composer's name of the kdramas soundtrack is liking digging in deep web , they just write "various artists" without giving names.

Yeah ! they always reuse old OSTs of their dramas in newer ones ! just as they did with "Hot Stove League" where they put OST from "Remember War of the Son"

I noticed that SBS reuses old OSTs of other dramas in newer ones, they did it in this one where they put OST from "Warrior Baek Dong Soo" and they did it in "Hot Stove League" where they put OST from "Remember War of the Son".. i also feel sad they never release all of the OSTs of their dramas, sometimes don't release them at all.