17 year old, Gen is forced to live with her grandmother after her parents' divorce. On her birthday, her grandmother makes Mee Sua, a traditional Chinese dish usually made as a symbol of longevity. But due to the difference in generation gap, Gen demands an extravagant birthday cake. Coming home from a birthday celebration, Gen sees a birthday cake and a handwritten letter. After reading, Gen feels guilty of her words and actions, now tries to reconcile with her grandmother.