Ato-oi-kozō (後追い小僧)

Name Meaning

Ato-oi-kozō (後追い小僧) translates to “the little boy who follows behind.” This yōkai is known for silently trailing people—especially when they walk alone through temples, graveyards, or wooded paths.

  • Ato (後) = Behind
  • Oi (追い) = To chase or follow
  • Kozō (小僧) = Boy, often a temple servant or youth → “Trailing Boy”

Origin

  • Spotted in stories from Kansai and Tōhoku regions of Japan.
  • Believed to be the spirit of a child or monk who died young and lingers around sacred places.

Appearance

  • Often invisible—people only sense footsteps or feel a presence behind them.
  • When seen, it may appear as a small, shadowy boy in old-fashioned robes.
  • Sometimes glimpsed in mirrors or reflections but disappears instantly.
Invisible follower spirit
Kozō yokai shadow

Behavior

  • Follows people silently—especially at night or in lonely places.
  • Never attacks, but its presence causes unease or fear.
  • Sometimes considered a spirit yearning for guidance or prayer.

Symbolism

  • Represents unfulfilled spirits or lost souls.
  • Warns travelers to remain spiritually aware and cautious.
  • A reminder of the thin veil between the world of the living and the dead.
Ghost child yokai
Trailing spirit from Japan