Y'all have probably heard of bad romance and its like an unusual romance where either the guy or the girl are bad or maybe criminal. But what I want here isn't exactly that. I'd like it of there are guys with conflicts and all the serious angst and hate but love which creates a wonderful bad bromance.

Some examples are,

School 2013, 

Chief Kim

Moorim School

Kill me Heal me

Tunnel

Circle

Duel

Warrior baek dong soo etc

 The classic ones would be the first three. And plz good looking guys too. K/J/C all dramas are fine.

Thank you. 

I’m a big fan of the examples ..you can try guardian and untamed..the bromance is beautiful.

I can't know whether you'll consider either or both of the male leads good-looking, but your description fits Punch like a glove.