you were ordinary highschool girl... Your mom died so u had only your dad and brother...U were healthy and energic since childhood until u started feeling exhausted and tired even after not doing anything... U went to hospital after fainting in school and they told u u have leukemia... Your dad always stayed there with u... U always stayed in your room and never came out, once u came out to see what's happening and u saw a handsome guy... His name was sunoo and he usually played games with his friend Jungwon... U got interested in him and often watched him