In Australian Aboriginal mythology (specifically: Murngin), Mokoi is an evil spirit who killed sorcerers who used black magic. Also known to kidnap children at night to eat them.
Mokoi is a demon-like creature in Japanese folklore that is said to haunt areas at night and bring misfortune or death to those it encounters. It is often depicted as a humanoid figure with glowing eyes and a menacing presence. In some legends, Mokoi is believed to be a harbinger of death.