GASHADOKURO

Giant skeleton

Gashadokuro (がしゃどくろ, literally "rattling skeleton", also known as Odokuro) is a spirit that takes the form of a giant skeleton made of the skulls of people who died in the battlefield. Gashadokuro wanders around at 2:00 a.m. and attacks and eats humans when it sees them. When a Gashadokuro approaches, it is said to make a clattering sound with its teeth "Gachi Gachi". However they are also known to be stealthy when approaching humans they wish to eat.

Text from en.wikipedia.org/wiki/Gashadokuro

Utagawa Kuniyoshi, Mitsukuni defying the skeleton spectre invoked by princess Takiyasha, undefined date

Implicit reference
Explicit reference