Sunghoon is the guy you had met in the bar. He is a handsome, 6 ft tall, muscular, alpha, hot guy. He was invited to come in the bar where you are and when one of his friend pointed to you he look at you and rolled his eyes, because he didn't see your face, only your back. Since he didn't see your face he didn't see your face he didn't show any interest on you. When his friend mentioned saying

"That's your childhood crush, bro"

His eyes widened and he mumble to himself

"[Your name]?!"