A place where people don't have names only numbers and letters. One girl, B19, and her friend, B23, decide to fight back, and make secret names for themselves, trying to give themselves individuality. But when B23 finds out that something has been hidden from them, she takes B19 with her and leads them through a whole mess. With flashbacks filling in the holes, you'll have to keep reading to the last sentence to understand everything.
11 parts