[ He wasn't going to introduce himself--he was just going to be a red shadow. But apparently, being called Rin's friend is a bit much. He frowns slightly, and after a few moments, he clarifies: ]

Consider me her guardian. I'm called Archer.

[ His frown deepens as he looks back at Rin. ]

Yes, let's leave them without a way of communicating with other imPorts. That's certainly a good idea.