Min Youngee and Kwon ji-yong where high school sweat hearts. Kwon proposed and Min of course said yes. But after a visit to the doctors, she finds that she has brain cancer and that it can't be cured. She knows this will destroy him. So she gets T.O.P to pretend that they cheated. All his friends know what's going on and agree having him angry would help him heal faster. But can they keep the act up?