When Inés, a precocious six-year-old, decides that the heir to House Escalante will be her future husband, Lord Cárcel finds himself unwillingly engaged. Over the following fifteen years, Cárcel goes to great lengths to evade the impending nuptials, much to Inés' contentment. She grants him the freedom to enjoy his freedom, on the condition that he steers clear of her affairs. However, Cárcel soon realizes that his carefree lifestyle loses its charm when authorized by his fiancée. As doubts of mutual fidelity arise, Cárcel embarks on a mission to win over Inés and demonstrate his capability of being the ideal spouse she desires.