Mōryō

This one comes out of the Chinese classics, and the description is precise enough to be unsettling.

It resembles a three-year-old child. Red-black in colour. Red eyes. Long ears. And — the clause that does the damage — beautiful hair.

That's from the Huainanzi, second century BC.

And what it wants is stated just as exactly, in the Bencao Gangmu, the great Chinese pharmacological compendium: it delights in eating the livers of the dead.

Not the flesh. Not the soul. The liver, specifically, out of the corpse.

The counter-measure was written into funeral law

Here is what tells you people took this seriously rather than decoratively.

There was a documented funerary practice against it: warriors carried halberds into the tomb during the rites, to drive the mōryō off.

That's not a folk charm. That's an armed guard, scheduled into the ceremony, with a specific threat in mind.

Somebody was standing in a tomb with a polearm, on the clock, watching for a child-sized red-eyed thing coming for the body's liver. That was a job.

What happened to it in Japan

It arrived, and it was gradually fitted into the local system.

First it was identified with water-spirits — the mizuha — which suits it, since the Chinese sources have it water-born.

And then it got conflated with the kasha, the corpse-stealing fire-cart that carries off the wicked from their own funerals. Two different corpse-predators from two different traditions, both turning up at the same event, gradually merging in people's minds until they were interchangeable.

The story that makes it

There's an anecdote in the Mimibukuro — an Edo collection of things people reported — and it's the keeper.

A samurai household had a servant.

One day the servant tells his master, straightforwardly, that he is a mōryō, and that he has to go — because there is a corpse he is required to remove.

He excuses himself and leaves.

And a coffin's contents vanish in black clouds.

Read what that servant actually did. He didn't lurk. He didn't get caught. He gave notice. He explained where he was going and why, because a body had come up and it was his responsibility.

The corpse-eater as an employee with a route. He had a shift, and the shift started, and he was polite about it.

The corpse-economy has a staff

Once you notice how many of these there are, it stops being a collection of monsters and starts looking like a department.

There's a creature that appears at graves where the rites were performed badly — an auditor.

There's one that screams over the capital when the dead go unburied during epidemics — a complaint filed.

There's the flaming cart that takes the wicked out of their coffins mid- funeral — enforcement.

And the mōryō is the scavenger with tenure. The oldest of them, imported already ancient, and the only one whose appetite came bundled with its own counter-ritual written into Chinese funerary practice before Japan ever heard of it.

It's still in the language

This is the part that outlives everything else.

The Chinese system pairs the mōryō — the water spirits — against the chimi — the mountain spirits. Put the two words together and you get chimimōryō, which means, roughly, "all the spirits of the natural world."

That four-character compound is still in daily Japanese.

It's what you say about a room full of scheming operators. Assorted monsters. Riffraff. Every commentator complaining about the chimimōryō in politics is reaching, without knowing it, for a two-thousand-year-old taxonomy that sorted spirits by terrain.

Which is a pattern worth watching for. The belief retires. The word gets a promotion.