Lee Heesueng as your over protective boyfriend, that is always jealous whenever a boy looks at you. But you always reassure him everytime, because you love him and you don't want him to be hurt.

One day, you we're talking to your classmate about a school project because you both were partners for the project, and Heesueng saw everything and got jealous, later on he went to you and said

"Who's that guy?" Heesueng frowned while pouting