He trains soldiers into steel; she tames toddlers with glitter. His mission is to fix her—until she teaches him how to feel.

Lieutenant Grayson Wolfe walks into Havenbrook Early Learning Center to impose discipline, not make friends. His mandate: retrain the lead nanny whose "creative" methods are driving the director mad. Riley Park sings instructions, renames snack time, and believes big feelings need room to breathe—everything Grayson's rulebook rejects. Forced to shadow her through a week of finger paint, nap mats, and tiny rebellions, he expects chaos. Instead he finds intention, empathy...and a woman who meets his command with soft, devastating certainty.

As sparks turn to heat and the kids crown him "Captain Gravity," Grayson's armor starts to crack. Riley's job is on the line; his reputation is, too. To save the classroom—and each other—they'll have to risk the one thing neither trusts: connection. Training the Nanny is a grumpy–sunshine, slow-burn workplace romance filled with banter, found family (of the toddler variety), and the courage it takes to trade control for love.