Gongjangnimgwa Ireomyeon An Doeneun Geol Aljiman
공작님과 이러면 안 되는 걸 알지만
Elin, enduring harsh treatment from her stepmother and stepsister, meets Dominic, the object of her secret affection, at a ball. While tending to a drunk Dominic, she ends up spending the night with him. Later, Dominic, needing to marry to finalize an agreement with the Crown Prince, suggests a contract marriage with Elin as he looks for a suitable spouse.