Lin Qingwu, the concubine of the Lin family, was forced to marry the cold-blooded regent Xiao Che on behalf of her eldest sister who had escaped from marriage. On their wedding night, Xiao Che held a dagger and questioned her, but she was found out because she was holding chopsticks in her left hand - she was the little beggar who saved his life on a snowy night ten years ago.
The palace is full of murderous motives: incense induces hallucinations, food is poisoned, and maids commit adultery. She outsmarted the situation and counterattacked from a "substitute chess piece" to a powerful princess.
When his sister-in-law, who faked her death to escape from marriage, brought enemy troops to the border and claimed that she was the "true phoenix blood princess", Lin Qingwu showed off the real jade pendant, which showed that "the phoenix blood returned to its throne and the country was restored to glory".
Her life experience was revealed, and she was not the concubine of the Lin family, but the descendant of the former dynasty's true phoenix blood. Xiao Che broke Yi's decree and recognized his wife in public: "This king's concubine only recognizes this jade owner."
The two work together to defeat the Queen Mother's conspiracy and protect the country. From a bowl of hot soup on a snowy night, they jointly control thousands of miles of land.