Francis doesn't do friends. Not really, anyhow. It's just too risky. And besides, she too's busy pretending to be a boy to waste time on friendships that - ultimately - are doomed to fail. She expects that Shermer High school won't be all that different. She just doesn't fit in, but honestly? She isn't the only one.

In a world where friendships are little more than gambles, promises are not something that Eren enjoys making - not even to his best friend. Eren/Levi - friendship, not romance :D