You're best friend. You both would sometimes sleep together if you guys have a sleepover at each other's house. He likes you as a best friend but, sometimes he made your heart flutter. He loves you as a friend, he would always be there for you if you're feeling down. Hyunjin is the perfect human being, he would get jealous if other guys talk to you. And you will get jealous of other girls talk to Hyunjin.