Kyōkotsu (狂骨)

Name Meaning

Kyōkotsu (狂骨) means “crazy bones” or “mad skeleton,” referencing the deranged spirit of a forgotten corpse.

  • Kyō (狂) = madness, insanity
  • Kotsu (骨) = bone

Origin

  • Appears in Edo-period yokai scrolls and folklore texts.
  • Represents spirits who received improper burials and became vengeful.
  • Often tied to urban legends surrounding haunted wells.

Appearance

  • Resembles a human skeleton rising from a dark, damp well.
  • Glowing or sunken eye sockets, with cursed or broken limbs.
  • Can appear misty or solid depending on the legend.

Behavior & Myths

  • Haunts wells where bodies were discarded or forgotten.
  • May curse those who disturb the well or drink its water.
  • Sometimes emerges to grab or possess unsuspecting victims.

Symbolism

  • Embodies neglect and spiritual injustice.
  • A warning of the consequences of improper burial and forgotten dead.
  • Acts as a symbol of retribution from the ignored and dishonored.
Kyōkotsu skeleton ghost
Yokai from the well