Katherine is the daughter scorned and abandoned by her father. After her mother’s death, she marries her lover and brings her half-sister, Diana, to live with them. However, Diana makes life unbearable for the poor girl. When Katherine turns seven, she is sent to Mexico, where she is raised by an employee. Although this situation could have been an ordeal for Katherine, it turns out not to be. Far from her father's control, she uses her intelligence to create one of the construction companies that would later become one of the most powerful in the world—an achievement kept secret due to her young age. When Katherine finally comes of age, she receives terrible news that forces her to return to the place where she was mistreated. However, this return is nothing more than a ruse to trap her into an engagement with the youngest grandson of one of the most powerful men in the country. Under blackmail, Katherine reluctantly agrees to the arrangement, unaware that the grandfather has orchestrated the commitment solely to ensure he has a grandson before his death. Katherine, unaware of the full extent of the plot, decides to go along with it, only to be left at the altar when her fiancé abandons her the day before the wedding. In a twist of fate, the responsibility of marrying Katherine falls on the eldest brother and the rightful heir of the Warrens—a striking, handsome, and dashing man, though bitter, serious, and obsessively dedicated to his work. He has never loved any woman and does not marry out of desire but to save the family’s good name. Will anything blossom between this couple, forced together by circumstance? Or will they need the help of some very mischievous girls—separated at birth but happy and intelligent, just like their parents?