At birth, you get things. Stuff your parents end up hoarding or getting rid of. Also gifts from people around you, it's just the way it is. But what if you were also given a book, one of two, that let you write to your 'soul mate'. Wherever, whenever. Born the same month as you, so that it saves heart break and sadness from ever occurring. Except, you can't choose who you are paired with... and sometimes, only sometimes, it's not a good fit at all.