Hmm, he never thought about explaining his powers to Reira before only because Reira was blunt and often blurted out things without thinking if it was harmless or harmful to say things. Not that he didn't trust her. It was more along the lines that she just didn't understand the most basic things at times.

"I can go through anything, that includes people, or more specifically if I don't want something to touch me, it can't. Fae realms kind of mess with that a little but it works most of the time."