Nopperabo: The Faceless Encounter

On April 2, 1904, Houghton Mifflin Company published a slim collection of Japanese ghost stories by Koizumi Yakumo, the writer known in English as Lafcadio Hearn. One of its seventeen tales, “Mujina”, turns on an encounter with a figure whose face has no eyes, no nose and no mouth — and then on a second encounter that delivers the same shock all over again. That image is what most readers outside Japan picture when they hear the word noppera-bo, even though the story itself never uses the word.

Quick facts

• Verdict: Not an internet invention. The noppera-bo is traditional folklore, documented in Japanese kaidan collections from 1663 onward — more than two centuries before Hearn, and centuries before online message boards.
• Name: noppera-bo (のっぺらぼう); also recorded as nupperibo in the eighteenth century.
• Type: A faceless apparition described in Edo-period kaidan collections and later illustrated in printed books.
• Earliest confirmed record: 1663 (Kanbun 3), in the collection Sorori monogatari, set in Oike-cho, Kyoto.
• Where it spread: Across Japan under regional names, from Tsugaru Hirosaki in the north to Kumamoto in the south; it reached English-language readers largely through Hearn’s 1904 book Kwaidan.

What the story says

The core of the legend is an absence. The creature appears in a human-like shape — it can be mistaken for an ordinary person until you look directly at it — but the face carries no eyes, no nose and no mouth, only flat, smooth skin. In one regional description the face is likened to a white gourd, with neither nose nor eyes. Its purpose, in the accounts, is essentially the shock itself: the Japanese material stresses that startling people is the main effect, and that anything worse than fright is rare.

The oldest recorded case is short and pointedly incomplete. In the 1663 collection Sorori monogatari, a noppera-bo of seven shaku in height appears in Oike-cho, Kyoto; the account says nothing about what the thing actually was. A century later, the 1767 collection Shinsetsu Hyakumonogatari records a variant called nupperibo making an eerie appearance at Nijogawara in Kyoto, and by 1779 the figure had been given pictorial form in Koikawa Harumachi’s illustrated book Yokai shiuchi hyobanki. Names shift from region to region: zunbera-bo in Tsugaru Hirosaki, and jubako-baba and nopperapon in Kumamoto, among others. What stays constant across the versions is the blank face and the moment of recognition that comes too late.

Earliest confirmed record

The earliest documented reference is the Sorori monogatari entry of 1663, and both the English and Japanese encyclopedic accounts agree on it — same date, same place, same detail that the text declines to explain what the apparition really was.

Two caveats belong here. First, the original text of Sorori monogatari was not examined directly for this article; the 1663 date rests on secondary description, reliable but second-hand. Second, “earliest confirmed” is not the same as “earliest”: an older record cannot be ruled out. Treat 1663 as the oldest firmly dated appearance of the named creature, not as its birth certificate.

What is documented

Three things are on solid ground. The name and the image are attested in dated Edo-period print: 1663, 1767 and 1779 give a clear textual and then visual chain, with Kyoto as the setting for both of the early written accounts. The physical description is consistent across the sources — human form, featureless face — and so is the modest scale of the threat, which is fright rather than injury. And the regional spread is real: the variant names recorded from Tsugaru Hirosaki to Kumamoto show a motif that travelled and was renamed locally rather than one invented in a single place and copied.

The Hearn side is documented too, as a publishing fact. Kwaidan: Stories and Studies of Strange Things appeared in 1904, published by Houghton Mifflin on April 2 of that year. It gathers seventeen ghost stories, “Mujina” among them; the Japanese description of the book counts twenty pieces in all, adding three short essays on insects. Most of the contents were retold from older Japanese texts or from legends Hearn heard from people around him, including his wife Setsuko, with his own interpretation layered on — though some pieces, such as his version of Yuki-Onna, were notably original work.

What is contested

The contested point is the link between the two halves of this article. “Mujina” is routinely associated with the noppera-bo legend, and it is the reason the faceless figure is recognisable in English at all. But the story never names the creature noppera-bo, and Hearn’s great-grandson, Koizumi Bon, has described the tale as Hearn’s own creation rather than a straight transmission of an existing legend. Given that Hearn’s method in Kwaidan ranged from close retelling to outright invention, the honest position is that “Mujina” belongs beside the Edo-period record, not inside it — a famous literary treatment of the faceless motif whose direct line of descent from the older noppera-bo material is not established.

One further distinction is worth keeping straight, because the title invites confusion. Mujina is an old Japanese word for certain animals, and the yokai called noppera-bo is a separate concept. Japanese reference material treats them as related topics, not as the same thing, and this article does the same.

Adaptations

The one adaptation the sources support is the one this article opened with: Hearn’s “Mujina”, published in Kwaidan in 1904. Its reach is easy to explain. The book has long since entered the public domain, and its full text circulates freely through Project Gutenberg and Wikisource, alongside a public-domain audiobook recording from LibriVox. For a legend whose Japanese record consists of a handful of terse entries in seventeenth- and eighteenth-century collections, that free availability did a great deal of work: a reader anywhere can encounter the faceless figure in a few hundred words of English prose, which is more than can be said for Sorori monogatari.

How it is discussed in Japan today

Ocsoku, a Japanese occult blog, has covered the subject in six posts published between 2014 and 2019. Those posts are personal accounts contributed by readers, and nothing in them should be read as a documented event.