[He flashes an apologetic smile.] I'm all right. These wings are just taking some getting used to, that's all. [He glances between the two of them.] We've got plenty of things weighing on our backs as it is, don't you think? [It's both a literal and metaphorical observation. The wings themselves are physically attached to their backs. Dealing with being a new haibane in this world but not being able to recall anything is another thing of its own.