Joy Of Manipulation

Main character Hyun-ki Quote
"A Man Can Be Destroyed But Not Being Defeated"

Hyun-ki is a high school student looking nerdy and good student but in reality, he is the most one you should be afraid of even the higher-ups in school are fearing him, all that because he is obsessed, he likes to control people lives, now you're thinking it's a superpower but in reality, it's just him playing with people mind with some tricks, but everything starts changing for our Hyun-ki when the transfer student named Mi-cha to his school and because of his best friend Mun-hee he will become close to her and her new best friend Hyun-ae that has a past with Mun-hee and Hun-ki, the four friends will go to a university and that when their life journey changed completely and got really messy because of Hyun-ki, all this was in Hyun-ki plan to make that mess but something will happen that even Hyun-ki didn't make it in his plans.
So what will he do to fix it?
Is he going to change plans?