On the eve of graduation, Luna Hart summons the courage to confess her long-held feelings to her childhood friend, Jake Reed—only to accidentally stumble into the room of his older brother, Ethan Reed, and fall right into his arms. Just when she thinks the day couldn't get any more mortifying, she witnesses Jake sharing a tender kiss with his new girlfriend, shattering her years-long infatuation in an instant. Yet, it is Ethan—the rebellious older brother who always loved to tease her—who repeatedly catches her when she is at her most vulnerable. As her old love becomes a thing of the past, she finally realizes that the person who truly understands and protects her was never Jake, but the Reed brother she had never really looked at closely before.