Eun Jae- parents died in car accident, moved in to live with uncleKey-Eun Jae’s senior at school, cousin but not close so didnt know of the relationEun Jae had a crush on key(popular in school)Key didnt know about Eun Jae until she moved in with her family(both families werent close). He fell in love with her at first sight. He would kiss her forehead secretly every night before going to sleep.