In Episode 22, the story begins with the arrival of spring, which reveals Lady Gyokuyou's pregnancy. At the heart of the narrative is a peculiar task assigned to Jinshi: he is to find and present blue roses for an upcoming garden festival, even though blue roses are a rarity that many believe do not exist. Jinshi asks Maomao to help him with this seemingly impossible task.

Throughout the episode, Maomao embarks on a resourceful journey to fulfill this request. Despite her initial skepticism about the existence of blue roses and the challenge posed by their seasonal blooming period, she devises a plan to make the roses bloom out of season. To achieve this, she must create a controlled environment that simulates the necessary conditions for the roses to grow—a task that requires constant attention and care.

Meanwhile, preparations for the garden festival are underway, with the introduction of Consort Loulan serving as a key event. The narrative also touches on the complexities of court politics, as the characters navigate their positions and relationships within the imperial court.

The climax of the episode reveals Maomao's creative solution to the challenge: she dyes white roses from the inside out to create the illusion of blue roses, along with other colors, for the garden festival.