After being kidnapped and forced to work as a servant in the rear palace, former apothecary Maomao inadvertently draws the attention of the higher ranks when she investigates what's causing the emperor's infant heirs to fall mysteriously ill.

Maomao tries to settle into her promotion to lady-in-waiting and food taster, but struggles to fend off both boredom and the overly-familiar Jinshi. That is, until she gets an assignment of her dreams: to concoct an aphrodisiac.

Maomao's peaceful morning at home is interrupted when she's called in to investigate an apparent double suicide at one of the local brothels.

Discovering that Maomao's kidnappers were connected to Fengming's family, Jinshi is faced with a choice between keeping Maomao in the rear palace where he can be near her or releasing her from her service.

To Maomao's surprise, Jinshi brings her directly to his house instead of taking her back to the rear palace, and tells her she's to work in the outer court. Not only is there much to learn, it seems there's many eyes on her as the new hire.

Back at home, Maomao visits an annex building at the Verdigris House that hides one of the brothel's secrets. Lakan continues to antagonize Jinshi as his connection to Maomao becomes clear.

No longer willing to keep running away from Lakan, Maomao decides to face off against him. She challenges him on his own turf, in a chess match.

Lakan must now choose a courtesan to buy out. As a high-ranking military official, he can afford to freely choose, even from one of the Three Princesses. Who will he choose? Who does Maomao really want him to choose?