Hana Hua takes over her grandfather's snack shop, only to discover that the back door opens into an 800-year-old ancient village after nightfall. She serves the locals modern pre-made dishes and tea beverages, which they regard as rare delicacies. Relying on this cross-time connection, she runs the business steadily and renovates the store. Everyday food brings mutual vitality to both sides, leading to a remarkable life turnaround.