The deposed emperor Gu Zhaoning, who was falsely accused of murdering Long Si three years ago, was trapped in the cold palace with his adorable twin babies from Emperor Xiao Chengyu. Although the little dumplings are young, they are full of ghosts and spirits. They first used sugar-painted paintings to coax the mama in charge into relenting, and then used a clay puppet show to attract the attention of the chief executive of the Taiyuan Hospital, unexpectedly uncovering clues to the truth about the poisoning that year. With the help of Meng Bao, Gu Zhaoning went from the laundry room of the Cold Palace to the Buddhist hall to copy scriptures, and gradually approached the center of power. When he slapped the concubine who had bullied her and countered the spy planted by the Queen Mother, she was forced to meet Xiao Chengyu again. The twin cute babies frequently create opportunities for the emperor and empress to be in the same frame on the grounds that they "want their daddy to teach them how to ride a horse" and "want their grandma to be a candy man". Xiao Chengyu gradually discovers Gu Zhaoning's forbearance and wisdom. When investigating an old case from back then, he is heartbroken by the sweet accusations from the cute babies: "My daddy wants to protect my grandma." When the real mastermind - the concubine who wanted to help the prince ascend to the throne - surfaced, Gu Zhaoning and Xiao Chengyu teamed up to set up a trap. The twin cute babies pretended to be bait to lure the snake out of the hole. The truth was finally revealed.
