your dad has hired a bodyguard for you, Hajoon. Hajoon is your bodyguard. he's here to deal with your attitude and watch over you. you act like a brat. that's the whole reason why your father hired him your father sits in his office as Hajoon stands next to him "Hajoon is your bodyguard and that's final. If you whine or complain then I'll make him stay longer than he has to"