Gu Yuntang, the daughter of the General Who Guards the North, follows her father's rules for choosing a husband and, by imperial decree, marries Shen Yanci, the aloof chancellor known as the "Living King of Hell." Everyone laments that she is marrying into a lonely chancellor's residence where she will find little affection. In the early days of their marriage, the two are indeed distant and taciturn. Clever and courageous, Gu Yuntang takes the initiative to draw closer to him, gradually melting Shen Yanci's cold, hard heart. As political turmoil repeatedly erupts, the Empress Dowager and the Duke of Wei's household repeatedly frame Shen Yanci, deliberately stirring up unrest in the court and threatening peace along the borders. With her strategic wisdom and the strength of her family behind her, Gu Yuntang joins forces with Shen Yanci, who is devoted to serving the country, to expose the conspiracies and stabilize the court. As they stand side by side to overcome each crisis, their feelings deepen. From distant mutual respect, they grow into devoted partners and ultimately find lasting peace together.