Nah, it's just her Essence's ability. Can shrink others, too, and man is it weird.

[Speaking from experience. But now he's going to get a bit animated.]

But it's actually kind of cool. Turns out that we have similar cultural heritage. She's from Japan, my ancestors from Japon, and though the dialect is a little different, we can talk and understand our native language.

[So...yeah he's kind of excited about his twin from another world.]