The fertile woman Su Luoshuang (the heroine) enters the palace to become a concubine, but after giving birth, she insists that she has not given birth to a child, so she is thrown into the cold palace by the emperor on the charge of "confusing the royal bloodline". Carrying two mysterious little kittens alone, Su Luoshuang gets caught up in the vortex of harem intrigues in the cold palace. At a critical moment, the emperor arrives, but feels an inexplicable familiarity with the two little kittens, and cannot bear to take action against them.