Kyōkotsu (Mad Bone)Sekien Zue Version

A form named and illustrated by the Edo-period artist Toriyama Sekien, who depicted white bones in a well as “Kyōkotsu.” The motif shows a skeleton in white garb linked to a bucket rope, rising from the well’s depths, often accompanied by phrases stressing violent grudge. Oral tradition for a proper name is sparse, and the figure likely arose from the linkage of image and words (dialect “kyōkotsu,” the term for bare bones “髑髏/白骨”). Later writers attached explanations such as “bones discarded in a well” or “spirits of the drowned or those who fell,” but primary sources do not fix its nature. Its eeriness as a skeletal image is emphasized, foregrounding symbolism over spiritual rank.