Almost every confusing word in a Japanese adult video listing is catalogue metadata — a genre slot, a production format, or a distribution status. It is written for a browsing shelf, not as a factual description of the people or events on screen.

That distinction resolves most beginner confusion. "Amateur" is a production style, not an employment claim. "Exclusive" describes a licence, not a performer. Below, each term gets one definition plus a note on what it signals when it appears in a title or tag list.

How should these labels be read?

As shelf placement. A distributor assigns tags so a browsing customer can filter a catalogue of tens of thousands of releases.

Layer What it tells you Example terms
Production format How the title was commissioned tanpin, kikaku, senzoku
Subject label Which genre shelf it sits on hitozuma, shirouto, chijo
Appearance tag A marketing descriptor kyonyu, bakunyu, slender
Distribution status Where and how you can watch it dokusen, senko, mihodai

Which terms describe performers and contracts?

Six. They tell you how a release was commissioned and where the performer stood in relation to the studio at the time.

term-joyuu

Joyuu (女優) — "actress", the neutral word for a female performer. In a title it appears in phrases like ninki joyuu (popular actress), which is a marketing claim rather than a category.

term-shinjin

Shinjin (新人) — "newcomer". In a title it marks a debut or near-debut release, and is typically applied only within roughly the first year of a performer's credited output.

term-senzoku

Senzoku (専属) — "exclusive". It describes a contract between a performer and a studio for a period, not a property of the video; it tells you the label had first call on that performer's schedule.

term-tanpin

Tanpin (単体) — a release built around one named, billed performer. When you see it, the performer is the product. See Tanpin vs kikaku tanpin.

term-kikaku

Kikaku (企画) — a concept-driven release built around a premise or format rather than a specific star. In a title it signals that the scenario, not the casting, was the selling point.

term-intai

Intai (引退) — "retirement". On a release it marks a title marketed as a final work; it is promotional framing, and is sometimes later reversed.

Which terms describe the subject or the relationship?

Seven. Each names a genre shelf or a story frame, and none of them is a statement about the performer as a person.

term-hitozuma

Hitozuma (人妻) — "married woman". In a title it denotes a genre slot with a domestic setting and an adult-woman lead, not a verified marital status. See What does hitozuma mean?

term-shirouto

Shirouto (素人) — "amateur", meaning a non-professional presentation style: casual framing, unscripted delivery, street-cast premise. See Are amateur videos really amateur?

term-jukujo

Jukujo (熟女) — "mature woman", a genre band defined by marketing age rather than a fixed number. See Where the age line actually falls.

term-chijo

Chijo (痴女) — a female-led dynamic in which the woman drives the scene. In a title it signals a role reversal relative to the genre default. See What does chijo mean?

term-ntr

NTR / netorare (寝取られ) — a story frame in which a partner is taken by someone else, told from the position of the one who loses them. See What does NTR mean?

term-netorase

Netorase (寝取らせ) — the inverse framing, where the partner arranges or consents to the situation. The one-character difference flips who is driving the plot, and English catalogues routinely collapse both into "NTR".

term-gyaru

Gyaru (ギャル) — a fashion subculture label: tanned or bleached styling, heavy makeup, a specific street-fashion look. It describes styling, not behaviour or age.

Which terms describe appearance?

Six. They are retail descriptors with no measurement standard behind them, and the boundaries move between distributors.

term-kyonyu

Kyonyu (巨乳) — "large bust", the broad default tier for anything above average. Roughly the widest bust tag in use.

term-bakunyu

Bakunyu (爆乳) — a tier above kyonyu, applied to the top of the range. See How bust-size labels work.

term-hinnyu

Hinnyu (貧乳) — the small-bust tag, used as a positive genre marker in Japanese catalogues rather than as a criticism.

term-binyu

Binyu (美乳) — "beautiful bust", a shape-and-appearance compliment that carries no size information at all, which is why it often confuses readers expecting a measurement.

term-slender

Slender (スレンダー) — a slim-build tag, borrowed directly from English and used as a Japanese catalogue category.

term-muchimuchi

Muchimuchi (むちむち) — a fuller-figured build descriptor. It is a texture word, so English catalogues render it inconsistently.

Which terms describe setting and costume?

Three. They describe wardrobe and premise only, and carry no claim about the performer's occupation or age.

term-seifuku

Seifuku (制服) — "uniform", covering school, nurse, office and service uniforms as costume. All performers in commercially released Japanese titles are verified adults; the tag describes wardrobe.

term-ol

OL (オーエル) — "office lady", a workplace setting tag. In a title it signals a corporate scenario, not the performer's occupation.

term-cosplay

Cosplay (コスプレ) — costume play referencing fictional characters. As a tag it indicates wardrobe only.

Which terms describe the product and how it is distributed?

Eight. These change independently of the content — a title can gain or lose most of them without a single frame being different.

term-hinban

Hinban (品番) — the product number, the alphanumeric ID such as a four-letter prefix plus digits. It is the only reliably unique identifier a title has.

term-best

BEST — a compilation assembled from previously released material, usually organised around one performer. See "BEST" vs "soshuhen".

term-soshuhen

Soshuhen (総集編) — "collected edition", a compilation organised around a series, theme or period rather than a single performer.

term-dokusen

Dokusen (独占) — "exclusive distribution": this platform is the only place carrying the title, at least for now. See Reading distribution labels.

term-senko

Senko (先行) — "advance": this platform has it before the general release date. It is a timing claim, and the exclusivity expires.

term-mihodai

Mihodai (見放題) — "all you can watch": the title is included in a subscription tier rather than sold individually.

term-mosaic

Mosaic (モザイク) — the pixelation applied to comply with Japanese obscenity law. Its presence is a legal fact, not a quality grade.

term-mukashusei

Mukashusei (無修正) — "unedited", meaning without mosaic. On a Japanese domestic catalogue this label essentially never appears; where it does appear, the material is distributed from outside Japan.

Why do English versions of these terms disagree so much?

Because no shared translation standard exists. Each catalogue localises independently, so one Japanese tag can surface as several unrelated English words — and the same problem affects performer names.

In our index, 197 of 2,333 named performers carry a romanised stage name that disagrees with the name used in at least one other language's metadata for the same person (our index, 2026-08 snapshot, n=2,333). Name divergence is not an edge case; it is the normal state of this metadata.

Related questions

Most of these terms exist as browsable tags. If you want to see how a label is actually applied in practice, open the matching keyword page and look at what sits under it.