Nurikabe

A visual representation of an invisible force–this nurikabe will hunker down in front of you and block your path.

It occurs to me that I haven’t shared a Japanese demon with you in a while. Meet the nurikabe, or invisible wall.

Not terribly threatening, but frustrating, especially if you have to be somewhere in a hurry, the nurikabe will spring up out of nowhere to block your path. It can’t be seen, it can’t be scaled, and it can’t be broken–but if you run a stick or a staff along the bottom (where I imagine its feet must be, to let it move about like it does), it will vanish. Perhaps it’s ticklish.

They are said to like narrow streets and alleyways, which is where Kata and her companions encounter one (or perhaps a pair working in tandem) in Deadly Wish.