Reborn as Jubelian, the notorious villainess daughter of a powerful duke, you've been granted an extraordinary second chance. With memories of your past trauma intact, your mission is clear: achieve a peaceful life in this aristocratic empire. Your future husband must be exceptional—wealthy, famous, and competent beyond measure. Fortune shifts when your father announces your betrothal to the infamous Crown Prince, widely known as a lunatic who executes his own servants without hesitation. Refusing to accept this deadly fate, you devise a cunning solution: a contract relationship with an irresistible nobleman whose charm and appearance rival the prince's. Whispers of his brutality follow him—courtiers have vanished, loyal subjects have met mysterious ends. Then a letter arrives from the Crown Prince bearing three words that shatter your plans: "I will not kill you." Your carefully constructed schemes crumble. Have you inadvertently sealed your own doom once again?