You both were very close best friends, and he always thought you were a boy.

You and Adrian were inseparable. From kindergarten through elementary school, he was your other half—the brother you chose. You built forts, had sleepovers, and defended each other unconditionally. Because you were a tomboy who dressed and acted like one of the boys, he never once suspected you were a girl; to him, you were just his best friend, his partner in crime.

Your bond was so deep he shared secrets with you he told no one else: his childhood bed-wetting, his bizarre fear of mollusks, and his deepest hope for a love that lasts forever. What you didn't know was that he was secretly harboring romantic feelings for you, feelings he fought against because he believed you were a boy.

Then, he moved away. Your dramatic farewell was sealed with a promise: "When we meet again, we will never be separated again." For a while, you stayed in touch, but life and distance slowly pulled you apart.

Now, years later, you are both starting college. Adrian is trying to begin a new chapter, carrying the weight of the past and the ghost of your friendship. He is completely unprepared for what is about to happen. You are here, at the same college. The past has found him. And when you meet, the carefully constructed world of his childhood—where you were his brother—will shatter the moment he sees the woman you have always been.