Song MinYoung has a huge crush on Kai since she transfered to SM High School. She was on her freshman year when she bumped into Kai and fell for him (Love at first Sight). She's been keeping her feelings bottled inside until the day on her Sophomore year, she decided to confess her feelings. Much to her surprise, Kai gladly accepts her confession. They were really happy back then, but what if on their 3rd Anniversary, Kai will turn out to be so cold and a bastard-like to her? I mean a huge bad bastard to her. On the other hand, on that day, MinYoung figured out that she has Leukemia. Will she stay with Kai even though she knows that Kai already lost his love for her and she will leave him soon? Or will she still hope and stay by his side hoping that the old Kai will be back?