Usually, Reiner finds Levi's expression difficult to read; he was never able to practice doing so back in their world like his peers. But he notes the way Levi's eyes soften, and his lips quirk into a faint smile in turn.

Not a day goes by that Reiner doesn't miss his cousin. He knows she got what she wanted; he knows she can take care of herself; he knows she isn't alone there. Still, he misses her. He always will.

Once Levi takes his seat and the controller, Reiner sets about instructing him on the basics. Thankfully, Reiner is a good teacher, clear without being patronizing. It may provide a hint as to why so many members of the 104th looked up to him.