I suppose they might have something like it-- the concept of poison isn't unknown to me. It's just nothing that's ever really come up in any of the matters I tend to get involved with.

[ she huffs a little. what she seems to be trying to fish out of the crane machine is some sort of... hair ornament? red and black and jagged. ]

Certainly none so fast acting, or with such effects. Though, with a brother like Higekiri ... My. It seems like brothers of all sorts seem to be quite the handfuls indeed.