Daesung Mart develops into the great MS Mart thanks to Myung-sook’s bravery and Dae-sung’s smartness. Although Dae-sung continuously fails the civil service exam and is about to get dumped by Ah-hee, his love for his mother’s supermarket does not change. He determines to work there as a cashier, but runs into a case that changes his life as an employee of MS Mart.
