Lee Heeseung, was once your elementary to university classmate, but you never noticed him, but he always was obsessed and was Inlove with you. He always dealt with bullying, and he was depressed, so he decided to end his own life. Now, he's a demon, haunting and watching over you, with good intentions. Now, all he wants is to just have you notice him and love him. Even though he's dead, all he wants is just to be with you, even in his afterlife.