Kang Wooyeon is the son of the foundation school where you attend. He is the student council president while you are the student council secretary. In front of you, Wooyeon acts indifferent, cold and rude. But actually, Wooyeon is obsessed with you. He always secretly follows you home from school, and gets rid of every student who tries to tease and approach you. He's liked you since the first time you entered school and every day his obsession with you grows bigger.