Well... Patchy can surely do things, probably with helping Frosty Vexen science harder. That, and she can do technology-related things, too, as, even if she doesn't know this, she lives in a goddamn library and is a voracious reader, so she'll figure things out quickly.

Chikane, though, is not much use. And kind of fixated on the whole 'I'm dead and I miss Himeko' thing.