Shen Zhaoying was originally the daughter of the Eldest Princess of Ning'an. When she was young, she encountered a change of fortune and drifted outside the palace, harboring a special talent for distinguishing scents and recognizing lamps. By a fortuitous coincidence, she returned to the imperial palace, received the protection of the Empress Dowager, and was enfeoffed as the Princess Zhaoning. Prince Zhenbei's Heir Xie Heng has always guarded her, and the two know and accompany each other. Relying on her extraordinary skills, she stepped into the Xuandeng Courtyard to investigate her mother's old case, repeatedly suffering framed accusations and harassment from opponents. Having endured perils in the lotus pond, court disputes, and wave upon wave of palace crises, Shen Zhaoying shed her cowardice, bravely stepped forward to explore the truth of the old cold-palace fire case, joined hands with Xie Heng to confront the dark forces, adhered to her original intentions, and guarded those around her.