Brilliant defense strategist and alchemist Kayla Oakheart sacrifices seven years of her career to run her arrogant fiancé Brennon's southern iron territories. Overhearing him dismiss her and cheat with fraudulent noblewoman Evelin, she ends the engagement and joins Greystone Keep as Chief Steward under Lord Sterling. She overhauls its flawed defenses and supply chains, outmaneuvers Evelin's sabotage, secures the royal defense contract, and finds equal love with Sterling, leaving Brennon consumed by lifelong regret.
