Heechul and Leeteuk are dating, when a new student in the name of Kngin came and tried to seduce Leetek. What would happen to them? 
While a Love tringle is forming between them, someone else decided to tag along. Heechul always receives flowers and letters inside his shoe locker. What would hapen to the couple then? Who is this mysterious guy? Would they last forever or would they realize they aren't meant for each other?