An eighteen-year-old beggar, Xiao Zhi, only wanted to grab a piece of white cake to fill her stomach, but by a twist of fate, her blood blended with the Emperor's, making her the princess who might have been missing for twelve years. However, another perfect noble daughter also tested with the exact same result. Lacking etiquette and possessing strange blue eyes, Xiao Zhi was soon regarded as an impostor, and was even framed with crimes such as stealing golden bells and Northern Rong ancestry, almost being expelled from the palace. Until the Empress tracked down alum and a golden basin from a ringing fake golden bell, further unearthing internal accomplices in the palace and a Northern Rong conspiracy. On the day of the ancestral temple ceremony, the fake princess's identity collapsed layer by layer, while that little beggar who used to hide even a single pastry secretly turned out to be the true pearl the royal family had painstakingly sought for twelve years.