Heeseung is your boyfriend but he had an amnesia..

He had an amnesia because of accident,car crash he don't remember anything even you he only know is his family and his ex(eve) he always find eve even though they already before for a while that's why it's hurts you a lot but you still keep visiting him even though it's hard and you're a college student and have many works but still find a way to visit him even everyday he doesn't want you there he always find eve