( it's not really worth learning too much about how it works. cursed techniques can get really stupidly complex for no reason... )

Yeah... It probably won't work for anything long-term, but if there's ever an area we want to keep some people in or keep some people from getting into, I'm your guy.

( he thinks a moment. )

It's hard to say... Most of the time when I've used this technique, it wasn't for very long. I can probably maintain it as long as I have the cursed energy to and keep awake?