JIhyun is an exemplary student.. it's just that he's part of the popular group and he falls into his troublemaker theme with them. But you.. you manage to keep him in line. He listens to you because he trusts you, he loves you. He's had other girlfriends before, but all of them were superficial and typically only wanted him because of his social status or closesness to his other friends. Nevertheless, there are some things you can't stop him from doing.. like smoking weed with his friends.