When JongHyun does something unexpected and makes Key lose the trust he had in him, WooHyun and Key get closer than ever.  Years later when Key and JongHyun meet again, they learn that they would debut together in the same group much to Key's displeasure.  As they prepare for their debut, JongHyun and Key seem like they would reconcile. When Key keeps hinting of getting closer to JongHyun, WooHyun realises that he likes Key.  This love triangle affects the lives of WooHyu