hentai-pedia is an online dictionary covering the vocabulary of sex and sexual culture. We write about everything from classical Japanese erotic art and Edo-period terminology to contemporary JAV genres, fetishes, subculture, history, and law — in calm, non-sensational prose aimed at adult readers.

The Japanese edition contains over 600 entries; the English edition is growing and covers the most internationally relevant terms. Both are updated regularly. The current total is shown in the site footer.

Articles are written by our editorial team with reference to published academic and specialist sources. We aim to cite sources explicitly in the "References" section at the end of each article.

Yes. The full Japanese dictionary is at hentai-pedia.com (no /en/ prefix). You can switch languages using the link in the site footer.

Use the search box in the header or on the top page. You can search in English, romanised Japanese, or kanji. The full-text search page is at /en/search/.

Categories are 8 broad sections (Acts & Techniques, Body & Sensation, Fetish & Kink, Hentai Media, Sex Industry, People, History & Culture, Law & Society). Each article belongs to one category. Tags are cross-cutting labels — a single article can carry multiple tags such as "shunga", "kink", or "forty-eight-positions", making it easier to explore related entries across categories.

The /en/timeline/ page organises articles on a time axis from ancient Japan to the present day. Each era links directly to the relevant dictionary entries.

The /en/hub/forty-eight-hands/ page lists the 48 Edo-period sexual positions in 10 groups, with links to individual articles wherever an English entry exists.

The /en/tags/ page lists every tag used in English articles, ordered by article count. Clicking a tag takes you to a search for that theme.

Yes. hentai-pedia is for readers 18 or older. On your first visit an age-confirmation screen is shown. Selecting "No" redirects you away from the site.

Absolutely not. Content involving real children, material that falls under child pornography laws in any jurisdiction, or sexual depictions of characters who are children is never published on this site.

Historical figures and public figures are mentioned where relevant to cultural history. We do not publish content that defames living individuals or violates personal privacy.

Every page includes <meta name="rating" content="adult"> and the RTA label, so that parental-control software can recognise and filter the site.

We organise entries into 8 sections: Acts & Techniques, Body & Sensation, Fetish & Kink, Hentai Media (AV, doujin, eroge, shunga), Sex Industry, People, History & Culture, and Law & Society.

Yes — use the contact form at /en/contact/. We add entries that fit our editorial scope as our schedule allows.

Our editorial policy is "accurate, neutral, and non-sensational". We believe that sexual vocabulary in particular benefits from careful sourcing and plain description rather than titillation or moralising.

Shunga are erotic woodblock prints produced in Edo-period Japan (roughly 1600–1868). The genre was created by leading ukiyo-e masters including Hokusai and Utamaro and served social functions — as gifts, amulets, and comedic entertainments — beyond mere eroticism. Long suppressed after Meiji, shunga has been reassessed as a major art-historical genre following landmark museum exhibitions in 2013 and 2015.

No — the number 48 is symbolic rather than precise. The phrase borrows the convention of counting sumo winning moves, and Edo-period pillow books list anywhere from 48 to 120 positions depending on the edition. The number signalled abundance rather than a strict inventory. Our hub page at /en/hub/forty-eight-hands/ organises the most frequently cited positions into 10 groups.

Pink film (pinku eiga) is a genre of theatrically released, low-budget adult 35mm film that emerged in Japan from 1962. It passed through the Eirin ratings board and played in mainstream cinemas, producing auteur directors alongside its commercial output. AV (adult video) began in 1981 with the spread of home VHS players, distributed through rental shops and mail order rather than cinemas. The two overlap in the 1980s but represent distinct distribution models and aesthetic traditions.

No. The Kama Sutra is a Sanskrit treatise compiled around the 4th–5th century CE covering the full scope of kama (desire/love) as one of Hinduism's four life goals. Sexual technique occupies only part of its seven books; the rest deals with finding a partner, social conduct, and philosophy. Its reputation as a purely sexual manual dates from its 19th-century English translation and the way it was marketed to Victorian readers.