Clary Fray is heartbroken when she finds out that her boyfriend,Jace Lightwood, cheated on her. All she wants to do now is to stay as far away from him as she can. When Clary is forced to live and study at the institute, she's willing to make the move to become a better shadowhunter until she realizes that Jace will be near her everyday. Will Clary's stay be a nightmare or will her lost feelings for Jace get the best if her? And will Jace be able to mend the pieces of Clary's broken heart?