Han is one of your friends, though he is very protective of you. He checks on you all the time, never leaves your side and gets very jealous when you're hanging out with someone else

one day, you were hanging out with your older brother at school. You two were walking down the hallway when Han spotted you. He immediately got jealous, not knowing that he was just your brother. He grabbed you arm and pulled you to himself Back off, she's mine.