Courier Hardy stumbles into his ex-girlfriend's wedding mid-delivery. Thanks to the "Ex-Slapping System," he instantly transforms into a billionaire and exposes her gold-digging ways on the spot. From then on, Hardy goes on a wild rental-collection spree, teaching parcel thieves, his dreadful ex-mother-in-law, and snobbish old classmates a lesson one by one. Yet, behind all the endless wealth, his ultimate ambition is actually to save lives...
