Lin Chuan, a down-and-out modern chef on the verge of bankruptcy, unexpectedly becomes bound to a Space-Time Restaurant System that lets him travel to the ancient Liang dynasty and access modern ready-made meals. Using a microwave and frozen delicacies, he takes the capital by storm, shelters an orphan girl named A Jiu, and wins over the struggling cook Liu'er. With prepared meals and modern culinary skills, he crushes his competitors, humiliates powerful nobles, and foils poison plots. He earns the favor of Princess Changle and the emperor, rises from an unknown small-time cook to become the emperor-bestowed 'Finest Fresh Delicacies Under Heaven,' opens branch restaurants, and builds a commercial empire, making his fortune in ancient times through modern cuisine.