[Relief, palpable, flows through him at this. There may be a lot of uncertainties, but... he can work with those.]

I... have n-no issue with re-explaining any... necessary i-information, Sayo. [He smiles; it carries through his voice.] Do you still need... further i-instruction as to your wings...?

[He'll have to remember to tone his explanations back. Maybe he can even help her with writing memory notes. Or something...]