A Glossary of the Genre
AUGUST 2026 EDITIONEROMANGA HALL OF FAME, Research Reference ── first published 2026-08. The URL of this page will be maintained permanently; should the contents be revised, the edition marker will be advanced and the revision stated. Method and citation at the foot of the page.
Three words do most of the work in English whenever this field is discussed ── hentai, doujinshi, ero-manga ── and in practice they are used as though they were interchangeable. They are not. One is an English usage with no Japanese counterpart. One is the ordinary Japanese name for the genre. And one does not name a genre at all: it names a way of publishing, and says nothing whatever about what is inside the book.
That the three have run together is not carelessness on anyone's part. They entered English by different routes and at different times, and none of them arrived carrying the structure that holds them apart in Japanese. What follows, then, is less a correction than a floor plan. Every term below corresponds to a door, a wing, or a yardstick somewhere in this hall: which records a work enters by, which formula measures it, why two halls exist where an outsider would expect one. Where a distinction is real, the hall's own figures are given, so that the reader can check it rather than take it.
I ── The three words used as one
Hentai ── 変態
In English this is the name of the whole medium. In Japanese it is nothing of the kind. 変態 describes a person, or a taste, as perverse ── it is a word you apply to someone, not a shelf you file a book on. The shelf is called 成人向け (seijin-muke, "for adults") or 18禁 (18-kin, "18-prohibited"), and no Japanese bookseller, publisher or artist calls the field hentai.
The stores from which this hall's records are drawn show the same thing in their own vocabulary. There, 変態 survives only inside a single content tag ── 「マニアック/変態」, "maniac / hentai" ── one label among hundreds describing what a particular work contains. The English word names the medium; the Japanese word names one taste within it. That is the entire distance between them.
How the English usage settled is commonly held to date from Anglophone fandom of the 1990s, in the era of newsgroups and file archives, but the mechanism is not documented well enough to be set down here as fact, and we leave it as a question rather than assert an origin. What can be said plainly is what the word does now: it is the name English readers use, and this page uses it in that sense. It is not, and will not become, a category in this hall. No wing here is sorted by it.
Ero-manga ── エロ漫画
The everyday Japanese word: ero and manga, joined without ceremony. It is what readers say, what artists say of their own work, and what editors say in the office. The formal register is 成人向けマンガ ("adult-oriented manga") and the retail register 18禁マンガ; ero-manga is the one people actually use.
This hall took that word for its name in English deliberately ── a field is best called what the people who make it call it. It has a second virtue as well. Alone of the three words, it describes the content and says nothing about the manner of publication, which is why it is wide enough to cover everything gathered here: 254 commercial works and 184 self-published ones, 438 in all, under one name that excludes neither.
Doujinshi ── 同人誌
This is the term most often misread, and the misreading is the reason this page exists. 同人 means "the same people" ── a group who share an interest; 誌 is a publication. A doujinshi is therefore a work published by its makers rather than by a publisher. The word describes who issued the book. It says nothing at all about what is in it.
A doujinshi may be erotic or entirely chaste. It may be original work or derivative. It may be manga, criticism, a technical manual, or a magazine of railway photographs, and all of those are published in quantity every year. To use doujin in English as a synonym for "erotic fan comic" is to take a word for a printing arrangement and press it into service as a genre ── which leaves the language with no way of saying the thing the word was for.
The hall demonstrates the distinction the only way it knows how, by measuring both and keeping the books apart. Of the 145 artists in the Author Hall ── every one of them admitted on the record of their commercial volumes ── 56 are recorded as also running a doujin circle of their own, and 4 of those circles have been inducted into the Circle Hall on their own separate record. The same hand, two systems of publication, two sets of figures that this site is at pains never to add together. If doujinshi named a kind of work, that overlap would be a contradiction. It names a way of publishing, so it is merely a career.
II ── The structure the hall is built on
Circle ── サークル
The unit under which a doujinshi is published. A circle can be a group of collaborators, but far more often it is one person working alone under an imprint name ── the convention survives from an era of shared tables at conventions, and it has never gone away. The circle name is what appears on the cover, what the store registers, and what endures for thirty years; the human being behind it may never be named at all.
This is why there are two halls here and not one. A circle is not the same object as a person, and the correspondence between them cannot be assumed, only established case by case. The Author Hall holds 145 artists, admitted on commercial records; the Circle Hall holds 118 circles, admitted on the doujin census. Merging them would require asserting identities the record does not state.
Commercial and doujin ── 商業と同人
Two doors into the same building, and the reason the first section's distinction is not merely verbal. Commercial work reaches readers through a publisher and is measured here on the record of commercial tankobon in digital distribution; doujin work reaches them directly and is measured on a full census of the two doujin stores. 254 commercial works and 184 doujin works stand in the two Works Halls, counted apart and never pooled.
They are not merely filed separately: they are measured on differently calibrated instruments, because a sale does not mean the same thing in the two economies. The formula is identical in shape ── 80 is the gate, 100 the line of Perpetual Honors ── but the reach standing behind 100 is four times the gate on the commercial side and five times on the doujin side, each calibrated to its own wing (Selection Criteria, Article 6). The Author Hall and the Circle Hall are likewise gated separately, on their own structural conditions.
An artist may stand in both wings at once, under two names, holding two unrelated scores. That the two records will not reconcile is not a defect in the data. It is the clearest statement this site can make of what the words mean.
Tankobon ── 単行本
A standalone collected volume, as opposed to 単話 (tanwa, a single chapter sold on its own) or serialization in a monthly magazine. In adult manga the ordinary path is that a chapter appears in a magazine first and is collected into a volume later, if it is collected at all ── and a great deal is never collected.
The word carries weight in this hall because the Author Hall's structural condition is five or more tankobon and ten or more years since debut (Article 5). Chapters are not counted, split volumes are not counted, and a new edition counts as the same book as the first. The reasoning is that a volume is evidence of something a chapter is not: that an editorial process judged a body of work worth collecting and a publisher paid to print it. Counting chapters as well would also count the same pages twice.
Anthology ── アンソロジー
A volume by many hands ── a themed collection built around a single subject, or a magazine-format book. In adult manga these are numerous, and some of them are among the field's most influential publications.
They stand outside the halls, for a structural reason rather than a hierarchical one: every other measure on this site attaches to a single artist, and an anthology has no single artist to attach to. They are not counted toward any artist's tankobon total, and they are not eligible for the Works Hall (Articles 5 and 6). A division was kept for them until 12 September 2026, when it was abolished pending a redesign; the record of what stood in it is preserved (supplementary provisions).
III ── Distribution and labelling
Comiket and the conventions ── 即売会
即売会 (sokubaikai, literally "spot-sale meeting") is the generic word for an event at which makers sell their work directly to readers, without a distributor or a store between them. Comic Market ── Comiket, held since 1975 and now twice a year ── is the largest of them, and the place where most of what is called doujinshi has always been born.
Its relevance to this hall is chiefly an absence. What is sold across a table at a convention leaves no public record: no sales count, no rating, no catalogue entry that survives the weekend. A circle's convention decades are therefore invisible to any tally built on store data, this one included. The Circle Hall measures years of activity as the span of a circle's presence on the stores (Article 7), which for many circles is considerably shorter than the span of the work. The limit is stated rather than hidden, because a reader ought to know which silences in this record are the field's and which are ours.
DLsite / FANZA
The two Japanese digital storefronts whose public figures ── sales counts and reader ratings ── constitute the record this hall tallies. Between them they hold most of the surviving numerical evidence about this field, which is why the site's Selection Criteria return to them on almost every page.
They are not interchangeable, and the arithmetic that follows from that is the most consequential on the site: raw sales are never added across the two stores. Each store's figure is first taken relative to that store's own level ── the cumulative sales of the all-time No.100 circle, which stands at 140,398 on DLsite and 1,041,907 on FANZA ── and only then summed. At the same rank, in other words, the FANZA number runs about 7.4 times the DLsite one. One sale on the one store and one sale on the other are not one unit of the same thing, and a tally that adds them is measuring the size of an audience it has not looked at.
R18 / Seijin-muke ── 成人向け
成人向け, "for adults", is the Japanese phrase; R18 is the form the digital stores use. On printed volumes the corresponding mark is an industry self-regulatory label introduced in 1991, and it is the mark by which bookshops zone their shelves and decide what stands behind a curtain.
It is worth being exact about what such a label is. It states who may buy a work. It states nothing about the work's merit ── a distinction worth holding on to in a field whose bibliography is thin precisely because so much of it was shelved out of sight, allowed to go out of print, and left out of the record on which histories are later written. Everything in this hall carries that label. Nothing in this hall is ranked by it.
IV ── One word about the people
Sakka ── 作家
The word Japanese uses for a manga artist. It is neither "author" nor "artist" exactly ── something closer to "maker of works" ── and its usefulness is that it declines to choose. English forces the choice: call someone an author and you have made a claim about the writing, call them an artist and you have made one about the drawing. In this field the choice is very nearly always false, because the same hand does both, and there is no separate credit to divide.
The exceptions exist and the hall accommodates them: where every volume in an artist's record carries a joint story-and-art byline, the pair is honored as a single unit (Article 5). But they are exceptions. The 145 names in the Author Hall are, overwhelmingly, 145 people who wrote and drew their own work for ten years or more ── which is the plainest thing that can be said about why this is a difficult way to spend a life, and why a hall for it seemed worth building.
In closing
A glossary is ordinarily a list of what words mean. This one is closer to a floor plan, because none of the definitions above were invented for the occasion: each is a decision already taken in the Selection Criteria and already visible in the shape of the halls ── two doors, two calibrations, 145 artists and 118 circles counted on separate books because they are separate things.
Where the English usage and the Japanese usage have parted company, we have said so and left both standing. Usage belongs to the people using it and is not ours to correct. The record is ours to keep straight, and a record kept in words that do not distinguish a genre from a printing arrangement is not straight. That is the whole of the argument.
Method
Scope: the terms an English-language reader needs in order to read the rest of this site, and no others. Terms of art internal to the scoring (the Dendo Score, reach, the R-index, Perpetual Honors) are defined where they are used, in the Selection Criteria, and are not repeated here. Definitions: each entry states the ordinary Japanese usage first and the corresponding structure in this hall second; where the English usage differs from the Japanese, both are given and neither is presented as an error. Figures: every number on this page is generated at build time from the live tallies of the hall ── 145 artists, 118 circles, 438 works (184 doujin, 254 commercial) ── and moves as the hall moves. The count of 56 hall artists with a doujin circle of their own comes from the site's own-circle record, in which each correspondence is verified individually against store registration data and similar sources (Article 9); it is a floor and not a census, since an unverified correspondence is left unrecorded. The store levels of 140,398 and 1,041,907 are the calibration of Article 7, recalibrated annually. Standard of assertion: where an etymology or a historical route is not documented to the standard the rest of this site holds itself to ── the English adoption of hentai is the case in point ── the entry says so and declines to assert one. Sources: the Selection Criteria and the tallies of this site; the public category and tag vocabularies of DLsite and FANZA; and the reference works acknowledged in Research Paper No. 1, 永山薫 (Nagayama Kaoru), 『エロマンガ・スタディーズ』 (2006; expanded 2014) and 稀見理都 (Kimi Rito), 『エロマンガ表現史』 (2017).
Limits
(1) This page describes usage as it stands in 2026; usage moves, and the edition marker will be advanced when it does. (2) The Japanese senses given are the ordinary ones and are not exhaustive ── 変態 also carries a biological sense (metamorphosis) that has no bearing here. (3) Women-oriented adult work (TL and BL) has a vocabulary and a distribution system of its own, and is outside the scope of this glossary as it is outside the scope of this hall. (4) No entry here has any bearing on selection or ordering: the criteria are the criteria, and this page only puts them into words. Corrections and additions are welcome.
How to cite this page
EROMANGA HALL OF FAME, "A Glossary of the Genre", August 2026 edition, https://ehof.net/en/glossary/ (accessed YYYY-MM-DD)
The URL and the edition marker are maintained permanently. When citing figures, we recommend giving the edition (August 2026 edition) alongside, since the hall's counts move as the record moves. The access date is filled in automatically with today's date. This page exists in English only: the distinctions it draws are not ambiguous in Japanese, and no Japanese original is therefore published.
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