天井下
Tenjō kudari has the appearance of a naked, ugly, old woman with a long tongue, and long, disheveled hair. This yokai was first documented by Toriyama Sekien, and aside from his illustration, little else is known about it.
Tenjō kudari spends most of its time in hiding, living in the narrow crawlspace between the ceiling and the roof. Every so often, in the middle of the night, it crawls out from the ceiling, upside-down, to scare people.
In old Japan, the space above the ceiling was connected with a lot of superstitions about dead bodies rolling about or women being confined like prisoners. Tenjō kudari seems to have been something Toriyama inventioned based on those myths. Fittingly, during his time, the phrase “to show someone the ceiling” was a colloquial expression for causing trouble — which tenjō kudari certainly does.
A few possible connections to origins outside of Toriyama’s imagination exist. One involves the story of a yokai that moved into the roof crawlspace of an inn in Yamanashi. During the night, it would descend from the ceiling and snatch up travelers to eat. However, it’s not sure whether this myth inspired Toriyama Sekien or rather was inspired by his work.