Middle-aged and surly, Mu-ok runs a tight ship at his traditional restaurant famous for its mandoo. All he really wants are heirs but, alas, his only son leaves medical school to become a Buddhist monk. Meanwhile, siblings Ming-guk and Min-seon suddenly find themselves orphaned after their parents suffer a fatal accident. But when Min-guk and Min-seon discover their biological father is Mu-ok’s son, they then show up at the restaurant to see the grandfather they never knew they had. This sets off a chain of events that give Mu-ok newfound hope for the future.