[The touch of the warm mug helps drive the cold away from his hands and Ruca smiles a little, before his eyes grow wide in surprise at the other's words.]

Really? [He's so moved his eyes actually get a bit teary.] Oh, you're such a good person! I would be indebted if you could... But are you sure it's no trouble?

[He would hate to bother someone so kind.]

Ah, I know. In return I can help you with anything you need. Just say a word!

[He smiles.]