GeGeGe no Kitarō

This one isn't a creature at all. It's a manga — and it is probably the single most consequential thing that has happened to Japanese monsters in the last hundred years.

GeGeGe no Kitarō began in 1960, drawn by Shigeru Mizuki. The first animated series came in 1968, and there has been roughly one new series per decade ever since — six of them, through 2020 — which means every generation of Japanese children since the sixties has met the yokai for the first time through the same show.

The premise

Kitarō is the last survivor of the Ghost Tribe. He's a boy with one eye hidden under his hair, and he stands between humans and yokai — sorting out the trouble that happens when the two worlds collide, and taking the side of whoever is in the right.

His father is Medama-oyaji, which translates as roughly "Daddy Eyeball": his father died, and was reborn inhabiting his own eyeball, and he is now a tiny one-eyed man about the size of a plum who rides around in Kitarō's hair and bathes in a teacup. He is calm, wise, and the show's best character by a wide margin.

And there's Nezumi-otoko, Rat Man — filthy, cowardly, permanently broke, and willing to sell out anyone in the cast for a small amount of money. He is one of the great mercenaries in Japanese fiction.

Why it belongs in a book about folklore

Because of what it did to the canon.

Ask anyone, in Japan or outside it, to name some yokai. You will get a fairly predictable list — the wall that blocks the road, the old woman who throws sand, the crying old man who gets heavier, the flying strip of cotton cloth.

That is not a list of Japan's most widely believed monsters. It is Kitarō's recurring cast.

Every one of those was, before 1960, a thin scrap of regional belief — a name in a folklorist's notebook, a couple of lines from one district, in some cases a sound with no described body at all. Mizuki went through the collected catalogs, found the ones that appealed to him, and did the thing nobody had done: he drew them. He gave visible bodies to beings that had only existed as vague textual descriptions, and then he put those bodies on television every week for sixty years.

Fame, in the yokai world, is not ancient. It was cast — around 1960, largely by one man's eye for a good design.

That's not a criticism. It's simply the mechanism, and knowing it changes how you read every "famous" creature in the tradition. Some of them were famous for four hundred years. Some have been famous since a Tuesday in 1968.

The quieter thing it did

There's a second effect that gets less attention and may matter more.

The premise of Kitarō is coexistence. Humans and yokai share the world. There are bad actors on both sides. The job is not extermination — it's mediation.

Japan had two available models for dealing with monsters. One is the monster-slaying tradition: the hero goes to the mountain with poisoned sake and comes back with the demon's head. The other is the neighbourly model: the visiting demon who comes at New Year to check on the children, the house spirit you feed and keep happy, the poverty god who turns into a fortune god if you treat him decently.

The postwar revival chose the second one, and the country followed.

Which means that when readers arrive at this material today — expecting the yokai to be mostly charming, mostly negotiable, mostly on the same side as us — they're not bringing a neutral view of ancient Japanese belief. They're bringing Mizuki's, and it's worth knowing whose it is.