Melanie Minor, even though she's only nineteen, has spent all her life caring about those around her. She volunteers, donates, and helps out whenever she can - but the one thing she doesn't think about is herself. Louis Tomlinson is funny, easy-going, and has let his stardom get to his head; so what happens when their worlds collide? After his sudden break up with model Eleanor Calder, he's single again and looking for something, a challenge - and that's just what Melanie is. What happens when a simple bet from his friends to take the challenge backfires and Louis finds out there's more to Melanie than he thought?