The story follows the life of Elsa, the daughter of a noble family that has fallen on hard times—though they aren't exactly destitute, they do face certain hardships. Unexpectedly, she receives a marriage proposal from Julius, the heir to a powerful ducal house and a royal advisor, who is also a highly sought-after young man. For Elsa, this proposal is a godsend that will allow her to save her family and improve the situation of her territory; however, immediately after the wedding, Julius—who until that moment had been unfailingly kind—makes his position clear with absolute coldness: "I have no intention of ever loving you."

Far from becoming bitter or holding a grudge, Elsa accepts the rules of the game with a smile and goes about her life with a calm demeanor, winning the affection of everyone around her through her simplicity and kindness. However, things get complicated when Elsa’s genuine warmth begins to break down the cold barriers Julius had built following years of trauma. Caught in his own trap, the once-distant duke falls hopelessly in love with his wife, showering her with excessive adoration, constant attention, and sudden bouts of jealousy. Yet, Elsa took his initial warning so literally that she remains completely blind to his feelings, interpreting every romantic gesture as nothing more than simple kindness. Amidst hilarious misunderstandings—with a husband desperate to win back the heart he once rejected and a young woman standing firm in her resolve—a major question lingers: will Julius manage to tear down the wall of romantic indifference he himself constructed, or will Elsa continue to view her passionate husband as merely a partner of convenience?