Jessica's life has been miserable for 2 years since both her parents died.Both her parents died in an airplane crash and she break up with her boyfriend.She'll always put the blame on herself.After that accident,Jessica stayed with her sister,Krystal,and her grandmother.Jessica always treat her grandmother in a bad way,but her grandmother doesn't scold her at the  way she treat her.She loves her grandchildren more than herself.After she stayed with her grand