One rule: don't fall for your boss. Second rule: definitely don't fall for your brother's best friend. When Lana Quinn accepts a live-in nanny job in the glass-and-steel world of Ashford Tower, she promises herself it's strictly professional. Kieran Ashford—ruthless, controlled, brilliant—has custody of his wary six-year-old niece and a schedule that never sleeps. He hires Lana on a one-month trial with three conditions: be early, be discreet, and don't get attached. Easy—until late nights turn to low-voiced conversations, a rain-soaked rooftop steals her breath, and the man who runs on rules starts breaking his own. With whispers in the boardroom, a past that keeps its claws in, and her brother warning her to walk away, Lana must protect the one heart that can't be collateral—Sophie's. But the more she becomes the calm in Kieran's storm, the more impossible it is to pretend she's not his exception. Tempting the Nanny is a slow-burn, forbidden boss/nanny romance set against the glitter of Manhattan—about found family, fragile trust, and the risk of choosing something real when everything is on the line.