Draco Malfoy has a secret. Hidden inside one of his textbooks is a list of every girl at Hogwarts he's ever kissed—and every name has been crossed off. Every name... Except one. The newest transfer student isn't interested in his reputation, his charm, or the fact that half the school seems convinced he's irresistible. For the first time in his life, Draco finds himself chasing someone who refuses to be impressed. What starts as one final challenge quickly becomes something far more complicated, as late-night conversations, accidental partnerships, and undeniable chemistry force Draco to wonder whether the last girl on the list was never supposed to be another checkmark at all.