Su Qinghuan, the daughter of a small official in Yunzhou, has superb medicinal cooking skills, but due to her father's "precise and precise" officialdom operations, she is forced to marry Xiao Jinghan, the king of Jingan, who is rumored to be "a wife-killer and a sinister person" on behalf of her eldest sister. On their wedding night, the two hit it off and reached a "reconciliation and divorce agreement": Su Qinghuan helped Xiao Jinghan deal with court disputes and family pressure to get married, and Xiao Jinghan supported her in her career and saved enough funds for divorce. What was originally thought to be a plastic marriage of "mutual use and each getting what they need" gradually turned sour in the frantic daily life of cohabitation - Su Qinghuan conquered the prince's stomach with bowls of medicated meals, and resolved the palace crisis with a "sober-minded" handling style; Xiao Jinghan despised her as a "money-obsessed philistine", but domineeringly protected her when she was in trouble, and silently paved the way for her career. When the word "harmony and separation" becomes a tacit taboo between each other, and when the secrets hidden under the rumors of the prince's "conquering his wife" are gradually revealed, the happy enemies who marry first and then fall in love cannot escape the "law of true fragrance". They transform from "agreed couple" to "lifelong confidants", and work together to turn their ordinary life into poetry.