Wangye Ni Hao Huai

A protagonist finds herself transported to another world, only to discover she has been placed in the body of a noblewoman and is now the top girl at a brothel. She is also bound by an imperial decree to marry a prince known for his reckless behavior. The prince and the woman are initially hostile toward each other, but their relationship evolves. The prince declares his feelings as a personal matter, hinting at growing affection despite their initial animosity.