Court lady Han prepares a new dish for the King’s midnight meal and serves it. Because of Court lady Han’s exceptional culinary skills, the incident goes unnoticed by others, including the King. However, Jang Geum and Yeon Saeng get penalized for their behavior. The Court lady in charge of training eventually finds out about the incident and keeps Jang Geum away from training area. But Jang Geum overhears the lecture while cleaning and studies as hard as she can. After many turns and twists, Jang Geum gets the chance to take the test and Chief Court lady picks Court lady Han as Jang Geum’s mentor. One day, all the ingredients prepared in So Joo Bang get spoiled while the ingredients prepared in Soo Ra Gan are at their best. Chief Court lady and Court lady Han investigates the cause and finds Jang Geum cleaning dishes using boiled water. They are amazed by Jang Geum’s intelligence as realize what kept the food in Soo Ra Gan in such good condition.