In the 13th episode of "Kusuriya no Hitorigoto," titled "Serving in the Outer Court," the narrative primarily follows Maomao's transition to a new role in the palace. The episode begins with Jinshi harboring mixed feelings about his own abilities and his position in the emperor's service. The emperor entrusts Jinshi with the management of the Rear Palace.

The scene shifts to Maomao at the Verdigris House, where she receives various items from Meimei and others, though she reluctantly uses things like lipstick. Maomao reflects on her previous work in the palace, where she solved mysteries and served Lady Gyokuyou. Now, she returns to the palace, albeit with some reservations—primarily because she must leave her father behind.

Luomen gives Maomao advice on what to bring to the palace and warns her against carrying items that could be mistaken for poison. Maomao thanks her family and sets off for the palace.

Upon arriving at the palace, Maomao is greeted by Jinshi, who informs her that she will be working in the Outer Court and preparing for the court lady examination—a significant change from her previous position. Maomao moves into her new quarters, which are surprisingly well-furnished for a servant.

Maomao begins her new role in the Outer Court, which involves a variety of tasks. She meets Jinshi's servant Suiren and learns about the duties and challenges of working in Jinshi's household, such as preparing his meals and dealing with issues caused by previous servants.

The episode also explores the dynamics within the Outer Court, particularly among the court ladies, who express jealousy and confusion over Maomao's direct assignment to Jinshi. Maomao skillfully navigates these social tensions, using her wit to defuse the situation.

By the end of the episode, Maomao fails the court lady examination and instead becomes Jinshi's personal servant.