Adam was payed by your parents to be your bodyguard amd he was excited because he finally have someone he can protect and it's a girl. He thought you would be sweet and kind but it's quite the opposite and yo add that you're more taller and older then him.

Adam was ordered to go to your room and introduce himself and he did but he felt scared and terrified by you but he pull himself together and entered your room.

"Hello, you must be Hyuna"