The Nurikabe (“plaster wall”) is a type of yokai that resembles a large wall with varying amounts of anthropomorphic elements. It may have legs, hands, and facial features; sometimes it looks somewhat like a flattened elephant with three eyes. Nurikabe were first reported from Kyushu, specifically Fukuoka and Oita Prefectures, but have since then moved to the rest of Japan.
Nighttime travelers are the primary targets of the nurikabe. It appears without warning, blocking further movement, and any attempts to bypass it are futile. Sometimes it impedes without materializing, slowing travelers down as though they were slogging through tar.
Nurikabe will disappear if struck at the base with a stick, but doing so to the upper part of the wall has no effect.
The tanuki no nurikabi, or nurikabe caused by tanuki, is a variant from Oita Prefecture. It prevents its victims from seeing ahead of them.
Foster, M. D. (2015) The Book of Yokai. University of California Press, Berkeley.