S1 NO.1 STYLE

What S1 NO.1 STYLE is

S1 NO.1 STYLE (エスワン ナンバーワンスタイル), S1 for short, is a Japanese adult video maker. The official site at s1s1s1.com titles itself the official site of an AV maker limited to S-class actresses (S級女優限定のAVメーカー), and at the foot of each page S1 makes its own claim to be Japan's number-one maker of single-performer titles (日本一の超単体AVメーカー), just ahead of a copyright notice that reads since2004. The contact form credits planning and production (企画・製作) to S1, and the age check speaks of 弊社, a company's word for itself, without a company name. S1 and S1 NO.1 STYLE are the only names the site gives for whoever runs it.

s1s1s1.com is written in Japanese from the age check to the footer. It shows a maker's output and does not sell it: the pages hold a release calendar, an actress index, a series and genre search, a link page and a contact form, with no cart, no login, no price and no player.

The site does not state whether its video is censored; video sold in Japan is mosaic-censored.

What it carries and how it is organized

S1's catalog is organized around people and releases. Two menus do most of the work: an actress list (女優一覧) sorted by the rows of the Japanese syllabary (a, ka, sa, ta, na, ha, ma, ya, ra, wa) with a 新着・ピックアップ (new and pick-up) entry, and a 作品から選ぶ (choose by work) menu with upcoming titles, released titles, release date, title search, series and genre. The sitemap page gives the same structure and says that the actress list introduces the performers who appear in S1 works, so the roster is on the site even though S1 prints no headcount for it.

The top page is a release calendar. Its reservation blocks are headed 予約受付中 (taking reservations) with the release dates October 27, 2026 and October 13, 2026. The reservation list page covers releases from October 12 to 27, 2026 and says 47 titles in all, shown 30 at a time across two pages. Debuts get their own treatment under the 新人NO.1STYLE (newcomer NO.1 STYLE) banner. The October 27 block opens with the debut of 桐谷エマ, and the October 13 block lists the debut of 蒼井すず in two versions, a regular edition and one marked 【数量限定】【特典版】 (limited quantity, bonus edition). The site does not say what the bonus is.

The recommended-series bar on the top page names the studio's brand lines: 新人NO.1STYLE, S1 GIRLS COLLECTION, 交わる体液、濃密セックス, S1 VR, エロス覚醒 はじめての大・痙・攣スペシャル and バコバコ乱交, an ensemble-party line. The recommended-genre bar includes big-bust (巨乳), a hard-style category (淫乱・ハード系), NTR and debut works (デビュー作品). The recommended keywords are a short set: 巨乳, S1 Style, vr and the string SSIS468.

A series page shows how deep a brand line can run. The page for エロス覚醒 はじめての大・痙・攣スペシャル says 全55作品 (55 works in all) and shows 30 at a time over two pages, each entry with its title and its performer's name. Series pages like this are the practical way to browse S1 by theme. The release lists also carry compilation volumes whose titles spell out their size: a 12-title, 12-hour collection devoted to one performer's first year since her debut, a 12-hour volume billed at 120 scenes from 5 years of another performer's work, a collection of 26 titles with a cast of 26 built from titles that took first place in a daily FANZA ranking (the title adds a claim of more than 300,000 favorites), and a volume billed at 115 scenes with a cast of 31.

S1 VR appears as a series name in the top page's series bar, and vr is one of the recommended keywords. The pages say nothing about VR formats, headsets or where the VR titles are watched, so headset owners look to a retailer for those details.

The link page and FANZA

S1's link page starts with FANZAニュース, which it describes as free daily news on adult video, and then sorts other makers under headings. Under general makers (総合AVメーカー) it puts MOODYZ and ワンズファクトリー. The performer-led heading (女優推し) begins with アイデアポケット and includes MUTEKI, whose blurb says it casts only celebrities. Further down come mature and married-woman makers (熟女), fetish makers (マニア・フェチ), a lesbian-specialist maker (レズ) and planning makers (企画), ROOKIE among them, followed by a toy brand, a games and doujin heading, an event site for AV actresses, an adult auction site and FANZA. S1 does not list itself. The FANZA entry is the last one, and its blurb names adult video streaming, DVD rental and adult mail order and claims one of the largest selections in Japan.

FANZA also has a tab of its own in the bar at the bottom of the page, between 女優 (actresses) and 作品 (works), with ホーム (home) and イベント (events) at the ends. The インフォ (info) menu adds links to X (formerly Twitter), Instagram and the イベルト event portal, plus the affiliate recruitment page and the contact form.

So the pages point S1's audience to FANZA for buying and watching, but they do not say S1 titles are sold only there. The sitemap describes a stores page (販売店舗) as introducing the shops that handle S1 works, and leaves the shop names to that page. Nothing on the link page presents S1 as related to the other makers it lists.

Japan mechanics: language, region, age gate

An age check (年齢チェック) stands in front of everything else: it calls the site an adult site, warns that a person under 18 who enters may be punished under national or regional ordinances, and disclaims the company's responsibility for whatever follows. The visitor is asked あなたは18歳以上ですか？ (are you 18 or older?) and enters with はい. The footer of the inner pages adds that every actress appearing in the works is 18 or older. For browsers, S1 recommends the latest Google Chrome, Firefox, Edge and Safari.

Nothing addresses visitors outside Japan: there is no region notice, no country list and no English version, and the only English on the pages is in labels such as RESERVE, SERIES, SITEMAP and LINK and in the reCAPTCHA notice. The contact form takes a message of up to 500 characters with a name and an email address entered twice, all required, and S1 says it uses submissions for reference and does not answer them.

The notices section shows the site's history: a notice on March 6, 2020 about events during the spread of the coronavirus, a site renewal on June 16, 2021, system-maintenance notices on January 18, 2023 and January 24, 2024, and a notice dated January 9, 2024 that release dates changed because of the Noto Peninsula earthquake. The lower part of each page also has recruitment pages for staff and outside creative roles, from designers and video editors to camera operators, writers, makeup artists, stylists and web directors.

Price, access and billing

There is nothing to buy on s1s1s1.com, so the pages carry no price, plan, points system, trial, refund term or payment method. Browsing needs no account after the age check. Viewing and purchase happen at retailers, with FANZA the one given a tab of its own. Card acceptance from abroad, shipping and subtitles are questions for that retailer's terms.

Who it suits

S1 suits a viewer who follows a particular performer or the S1 brand lines and wants dated release lists and series pages before heading to a store. It also suits someone sorting out which makers the big Japanese studios link to, thanks to the link page. It is not the place for English text, subtitles, a price or a stream. The trade-off is plain: a full, well-ordered Japanese release board, with censoring and overseas sales settled at the retailer.