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.