Yoshiwara is the one district in Tokyo where the buildings tell you what they are. Walk north from Minowa and the soaplands announce themselves in chrome and gold leaf — no discreet elevator, no unmarked door. Cityheaven's area page counts 94 shops and 5,096 women in this pocket of Taitō-ku, and the whole trade runs on a pricing convention that exists nowhere else in Japanese adult services: the 入浴料 (nyūyokuryō, "bathing fee") paid to the house, and the サービス料 paid to the woman, quoted separately and summed into a 総額.
That convention is the reason this article exists. It gives a Yoshiwara shop two numbers to move instead of one.
club OASIS (クラブオアシス) sits at 東京都台東区千束4-45-3, phone 03-5808-2444, filed by Cityheaven as ソープ(スタンダード/吉原) — soapland, standard class. Open 9:00 to 24:00, official site c-oasis.net. There's a free shuttle from Minowa station on the Hibiya line, no parking of its own. Say 「ヘブン見た」 when you call.
And unlike most of what I write up, this one is not a mystery shop. It has 720 reviews. It is an institution.
The board
Here is the entire price page, tax included:
| Course | Ex-tax | Tax-incl | Per minute |
|---|---|---|---|
| 60 min | ¥20,000 | ¥22,000 | ¥366.67 |
| 90 min | ¥28,000 | ¥30,800 | ¥342.22 |
| 130 min | ¥35,000 | ¥38,500 | ¥296.15 |
Above it, one line:
入浴料21,000円／110分 ⇒ 只今、入浴料無料中!! さらにプラス20分延長!!
Bath fee ¥21,000 / 110 minutes ⇒ bath fee free right now!! Plus a 20-minute extension!!
Below it, one more:
※本指名は1,000円頂きます。
That's the whole system page. Three courses, one waiver, one ¥1,000 repeat-nomination fee. It is genuinely one of the shortest price pages in Yoshiwara, and the shop brags about that — わかりやすい料金システムも当店の自慢のひとつ, an easy-to-understand pricing system is one of our points of pride.
Note the header on the course table: オールタイム. All-time. One price, 9am to midnight, seven days. Hold that thought; it comes back.
Where the ¥21,000 goes
If you read the system page top to bottom the way it's laid out, you do this arithmetic without being asked: bath fee ¥21,000, plus 130 minutes at ¥35,000, equals ¥56,000 — and today it's ¥38,500. A saving somewhere north of twenty thousand yen.
Now open the coupon tab. Every coupon on this listing ends with a two-column table headed 通常 / クーポン利用時 — regular / with coupon. Here is the one attached to the new-arrival discount, copied exactly:
| 通常 (regular) | クーポン利用時 (with coupon) | |
|---|---|---|
| 合計 | 110 分 38500円 | 130 分 35200円 |
| 総額 | 110 分 38500円 | 130 分 35200円 |
総額 is the Yoshiwara word for grand total — bath fee plus service, everything. And the shop's own grand total for the regular 110-minute course is ¥38,500.
Not ¥59,500. Not ¥56,000. ¥38,500 — which is ¥35,000 plus 10% consumption tax, and which is also, exactly, what you pay for the 130-minute course today.
So there are two possible readings, and I'll give you both.
Reading one: the ¥21,000 bath fee is notional. It appears on the system page in order to be crossed out, and it has never been a line on anybody's bill.
Reading two: the coupon page's 通常 column already assumes the waiver, and the true unwaived total is ¥59,500 — which would make the free-bath promotion a 35% discount that the shop declines to show anywhere in a 総額.
I can't distinguish between them from outside, and I'm not going to pretend I can. But here's what survives either reading, because it's the same in both: the difference between the shop's stated regular deal and the deal on offer today is 20 minutes. 110 minutes for ¥38,500 becomes 130 minutes for ¥38,500. That's it. That's the promotion, in the shop's own numbers, on the shop's own page.
Twenty minutes is not nothing. It moves the rate from ¥350.00/min to ¥296.15/min — a 15.4% improvement, and it is the reason the 130-minute course is the best-value slot in the building. But if you walked in expecting to have ¥21,000 taken off a bill, nothing on the coupon tab supports you.
One more data point, and it's the quietest one in this article. I read the 90 most recent of this shop's 720 reviews, covering 2 June to 19 August 2026. Across all ninety, the string 入浴料 appears zero times. Not once. Ninety customers wrote up their visits in detail — several of them itemised the shuttle, the waiting room, the tea — and not one of them mentioned the bath fee.
You don't write about a charge you were never asked to pay.
The same ¥3,300, sold twice
Now the part that made me go back and check my own arithmetic three times.
This listing carries three coupons. Two of them deliver the identical price change: ¥38,500 → ¥35,200 on the 130-minute course. Same course, same money, ¥3,300 off.
They are advertised as 23% OFF and 9% OFF.
| Coupon | Banner | 通常 (as the coupon states it) | With coupon |
|---|---|---|---|
| 新人・キャンペーンガール割引 | 23% OFF!! | 110 分 38500円 | 130 分 35200円 |
| バースデー割引 | 9% OFF!! | 130 分 38500円 | 130 分 35200円 |
Look at the third column. One coupon declares that the regular course is 110 minutes for ¥38,500. The other declares that the regular course is 130 minutes for ¥38,500. Same shop, same page, same day, same money — two different answers to how long is the regular course.
And that single discrepancy is the entire percentage gap, because Cityheaven's badge is computed on the per-minute rate:
- Against 110 min: ¥350.00/min → ¥270.77/min = −22.6%, rounds to 23%
- Against 130 min: ¥296.15/min → ¥270.77/min = −8.6%, rounds to 9%
The actual money, both times: −¥3,300, or −8.57%.
The third coupon, the free-customer discount, is a model of honesty by comparison — 4% OFF, 90 minutes ¥30,800 → ¥29,700, which is −3.57%, and since the duration doesn't change, the per-minute figure and the price figure agree. That one is straight. It's straight because the shop had no second duration to measure against.
So I don't think anyone here sat down to deceive. I think the 23% falls out of a badge algorithm fed an inconsistent 通常 field. But the effect on a customer scanning coupon banners is exactly the same, and the effect is that the biggest number on this listing — 23% OFF — is attached to a ¥3,300 discount.
The fourth price list
Three price documents so far: the system page, the coupon page, and the coupon page again with a different regular. There's a fourth.
On the front page, a rotating notice titled 平日限定！キャンペーンガールをご指名頂くと・・・ opens to this:
初回指名に限り130分コースが3000円OFF！90分コース・60分コースが1000円OFF！
Weekday only. First nomination only. 130 min ¥3,000 off, 60/90 min ¥1,000 off.
Now compare the coupon-page version of what is plainly the same offer:
新人・キャンペーンガール割引実施中です。対象の女性をご指名の場合、料金から割引させていただきます。 130分コース・・・3,000円割引 / 60分,90分コース・・・1,000円割引 有効期限: 2025/04/22(火)～無期限
Identical amounts. No weekday restriction. No first-visit restriction. No expiry.
That is a material gap, not a typo. A man who books a campaign girl for Saturday afternoon has one page telling him he gets ¥3,300 off and another telling him the offer is weekdays only. A regular who books the same woman a second time has one page saying yes and another saying first nomination only. Both pages are live. Neither references the other. The coupon page's closing line is 詳細はオフィシャルサイトからご確認ください — check the official site for details — which is the listing telling you, in writing, that it is not the authority on its own prices.
And while we're on expiry dates: of the three coupons, one has run since 2025/04/22 and two have run since 2023/03/31, all three marked 無期限, no expiry. That's 41 months for the free-customer and birthday discounts. A discount that has not moved in three and a half years is not a discount. It is the price list, wearing a discount's clothes — which is worth knowing mainly so you don't hurry.
What the numbers get right
I've spent a thousand words on the packaging, so let me be equally precise about the contents, because the contents are good.
Every yen figure on this listing reconciles. The discounts are applied pre-tax and the totals are correct to the yen:
| Course | List ex-tax | −discount | ×1.1 | Published total |
|---|---|---|---|---|
| 130 min | ¥35,000 | −¥3,000 | ¥35,200 | ¥35,200 ✓ |
| 90 min | ¥28,000 | −¥1,000 | ¥29,700 | ¥29,700 ✓ |
| 60 min | ¥20,000 | −¥1,000 | ¥20,900 | ¥20,900 ✓ |
Three for three. Whoever does the arithmetic here does it properly. The percentages are theatre; the yen are real.
The nomination fee is almost free. ¥1,000 for a 本指名 — a repeat nomination. That is the only nomination charge the system page lists, which means picking someone off the photo board as a first-timer costs nothing at all. For scale: I costed a delivery shop in Uguisudani last week whose nomination fee reached ¥10,000, more than half the course price again. Here the entire spread between the cheapest and dearest way to choose a woman is:
- Free customer, 90 min: ¥29,700 (you take who you're given)
- Repeat nomination, 90 min: ¥30,800 + ¥1,000 = ¥31,800
¥2,100. Seven percent. In a trade where the person is routinely the most expensive variable on the bill, club OASIS prices her at ¥1,000 and pays you ¥1,100 to skip the choice. That is a genuinely unusual structure and it deserves saying out loud.
Going long is the cheap move, and the shop doesn't hide it. Run the marginal cost of each step up:
| Step | Extra time | Extra cost | Rate for that block |
|---|---|---|---|
| 60 → 90 | 30 min | ¥8,800 | ¥293.33/min |
| 90 → 130 | 40 min | ¥7,700 | ¥192.50/min |
The last forty minutes of the long course cost ¥192.50 a minute — barely half the ¥366.67 you pay for the first hour. Most shops in this industry do the exact opposite, front-loading value and charging a premium for extensions. This board rewards you for staying.
And the customers have noticed. Across those 90 reviews, counting mentions of each course by name:
| Course | Mentions |
|---|---|
| 130 min | 26 |
| 60 min | 2 |
| 90 min | 1 |
Nine to one for the long course. The 130 is not a menu item here, it is the item, and one reviewer put the reason better than the price table does: 楽しいと本当に130分はあっという間ですね — when you're enjoying yourself 130 minutes really does go by in a flash.
This is a daytime shop
The word on the course table is オールタイム — one price, any hour. So the only thing that varies across a fifteen-hour day is how many women are actually there. I built today's coverage from the published shifts of all thirteen women working Thursday 20 August:
| Window | Women on shift |
|---|---|
| 09:00–11:30 | 4 |
| 11:30–14:00 | 12 |
| 14:00–16:00 | 13 |
| 16:00–16:30 | 11 |
| 16:30–18:00 | 10 |
| 18:00–19:00 | 9 |
| 19:00–21:00 | 5 |
| 21:00–21:30 | 4 |
| 21:30–22:00 | 2 |
| 22:00–24:00 | 1 |
Read that column top to bottom. This shop peaks at thirteen women at three in the afternoon and closes with one woman for the last two hours, at an identical price. A 13× swing, no off-peak rate, no late discount.
If you have any experience of Tokyo delivery health you will find that inverted, and it is. The Uguisudani shop I costed last week peaked at 00:30 and opened at noon with two. Yoshiwara runs on the opposite clock — a soapland is a building with a shift roster, not a dispatch desk, and the shift that fills is the afternoon one. The shop's own front desk hours give it away: phones open at 8:30, half an hour before the doors.
Go in the afternoon. Between 11:30 and 18:00 you are choosing from nine to thirteen women at exactly the price that buys you one at 22:30. That is the single most actionable sentence in this article and it costs nothing to act on.
The weekly picture is stranger still:
| Day | Women scheduled |
|---|---|
| Thu 20 Aug | 13 |
| Fri 21 Aug | 8 |
| Sat 22 Aug | 15 |
| Sun 23 Aug | 16 |
| Mon 24 Aug | 9 |
| Tue 25 Aug | 12 |
| Wed 26 Aug | 12 |
Friday is the thinnest day of the week. Sunday is the fullest. Eight versus sixteen — the roster literally doubles between the night most men would assume is peak and the afternoon most would assume is dead. I have no explanation for it beyond the obvious one, which is that Yoshiwara's customer is not coming after work.
Forty-three names, twenty-five shifts
The 女の子 tab lists 43 women. Every published age:
20 ×5, 21 ×7, 22 ×4, 23 ×12, 24 ×2, 25 ×1, 26 ×2, 27 ×2, 29 ×1, 33 ×1, 35 ×3, 37 ×1, 39 ×1, 40 ×1.
Median 23. Mean 25.0. Range 20–40. Heights 147–173cm, mean 159.7. And the bust column is not subtle: 22 of 43 — 51% — are listed at H-cup or larger, against nine at D or below. One A-cup on the entire roster.
The shop's copy claims 20代から40代と幅広く — ranging from twenties to forties — and for once the copy is accurate, with one wrinkle. There is a hole in the middle. Thirty-six women are aged 20–29. Seven are 33–40. Nobody is 30, 31 or 32. It isn't one roster with a wide spread; it's two cohorts with a four-year gap between them.
Now cross that against the schedule. Of the 43 names, 25 have at least one shift in the published week. Eighteen — 42% of the roster — have none at all, seven days out. Six of those eighteen appear on the second page of the weekly table with seven consecutive empty cells, which is a very specific kind of listing: present enough to be counted, absent enough to be unbookable.
Forty-three is the marketing number. Between eight and sixteen is the operating number.
The half nobody writes about
Here's the finding I didn't expect.
Four women on this roster carry a 【二輪車】 tag in their catch-copy — the two-woman service, the shop's premium offering. They are:
| Woman | Age | Catch-copy |
|---|---|---|
| みさお | 35 | 【二輪車】色香満載のセクシー系美女! |
| みわ | 35 | 【二輪車】THEエロス！勃起度200%の爆裂BODY |
| ふう | 37 | 【二輪車】THE美魔女！某高級から移籍完了！ |
| 淳ーじゅん | 40 | 【二輪車】レジェンド泡姫が当店に降臨！ |
All four are in the 35+ cohort. Every single one. The shop's headline service is built entirely on its oldest women — 美魔女, beautiful witch; レジェンド泡姫, legendary soap princess; 某高級から移籍完了, transferred in from a certain high-class shop. That is a deliberate and, I'd argue, rather good piece of positioning: standard-class prices, high-class-shop experience, sold on exactly the women a lower-effort shop would bury at the bottom of the page.
And then I counted the reviews.
Of the 90 most recent reviews, exactly one is for a woman aged 33 or over — a first-timer writing up 羽川 (39) on 10 August, who called her 天然記念物級, monument-grade, and scored the visit 4.0. One. Out of ninety. Across seventy-nine days.
The mean age of a woman being reviewed at this shop is 23.1, against a roster mean of 25.0. Twenty-one distinct women appear in those ninety reviews, which means 22 of the 43 — 51% — have not been written up once in nearly three months. And the concentration at the top is severe: うに (15 reviews), しおり (13) and みあも (9) account for 37 of 90 — 41% of the entire recent review base between three women.
So the shop markets its flagship service on a cohort that its review page suggests almost nobody is booking. I don't read that as dishonesty. I read it as a real gap between what a business is proud of and what its customers actually do — and if you are the sort of person who reads a 40-year-old described as a legend and thinks yes, that, you are looking at four women with the shop's full endorsement, minimal competition for their shifts, and essentially no public feedback to help you choose. Make of that what you will. It is the least crowded door in the building.
720 reviews, and 90 of them read closely
The 口コミ tab holds 720 reviews across nine-plus pages. I read the most recent ninety, spanning 2 June to 19 August 2026 — 79 days, a shade over 1.1 new reviews a day, sustained. Averages across those ninety:
| Dimension | Average |
|---|---|
| 女の子 — the woman | 4.84 |
| プレイ — the service | 4.84 |
| 写真 — photo accuracy | 4.64 |
| 料金 — value for money | 4.63 |
| スタッフ — the staff | 4.53 (n=51) |
| Overall | 4.70 |
A 4.70 sustained over 79 days and 720 lifetime reviews is a strong number and I'm not going to talk it down. Three things sit underneath it that are worth having.
First, this shop has genuinely won the booking-channel war. 80 of the 90 reviews — 89% — carry the ネット予約で行きました tag, and the phrase ネット予約 appears 119 times in the text. The shop's advantage is published and real: net reservation opens 15 days ahead and runs 24 hours; phone opens 7 days ahead, 8:30–24:00. Double the lead time for using a web form. Nine customers in ten took the deal.
Second, the shuttle works. 送迎 is mentioned 19 times, 三ノ輪 six. The most useful single line came from a 19 August regular: 三ノ輪に着き送迎を待っておりましたら、ほとんど待たずに乗り込みお店に向かいました — I got to Minowa, waited for the pickup, and was in the car almost immediately. The listing says 駐車場なし, no parking, and if you drive be warned: a June reviewer found the lot next door full on a Thursday morning.
Third — and this is the one that would decide it for me — the front desk is staffed by women. From the same regular: ここの最大の特徴はフロントが女性な事です。私はとても嬉しくなります、ほんわかな気持ちになって — the biggest thing about this place is that the front desk is women. It genuinely lifts my mood. Another reviewer was handed an umbrella by staff on the way out. In a district where the reception experience is usually two men in black suits, that is a real differentiator, and it does not appear anywhere in the shop's own advertising copy. Its customers had to tell me.
What the reviews are not is individually answered. All 90 carry a reply. All 90 carry the same reply, word for word: この度は口コミ投稿ありがとうございます。今後ともご愛顧の程、宜しくお願い致します。クラブオアシス・スタッフ一同. Ninety identical thank-yous. It is polite, it is prompt, and it is a macro.
Two more things from the pile. Of the 39 reviewers who declared visit count, 27 — 69% — said 3回以上, three or more visits; the shop claims a repeat rate of 90%+ and while a review sample can't confirm that, it points the same direction. And しおり (27), the most-reviewed woman on the roster at 55 lifetime reviews, is retiring in September — two separate customers flagged it on 11 and 17 August, one explicitly calling his visit the last chance. If she's who you came for, you have about six weeks.
The copy, for completeness
The concept blocks are the usual Yoshiwara register, with one item worth flagging for the pedants. On the same front page, in two different blocks, the shop says:
Club OASIS は、お陰様で会員10万人突破しました！
and
インターネット会員は17万人を突破、リピート率は驚きの9０％以上！
One hundred thousand members in one paragraph, one hundred and seventy thousand internet members in another, on the same page. Internet members being a subset of members, those can't both be current. It's the signature of a page that has been edited in layers for years and never read top to bottom — which, given that two of its coupons date to 2023, tracks.
Also filed under claims I can't check but can contextualise: Aクラス以上の美女のみをしっかりと厳選 — we select only A-class beauties and above. Cityheaven files the shop itself as スタンダード, standard class. The shop's answer to that is ふう's catch-copy — 某高級から移籍完了, transferred in from a high-class house — and honestly, "high-class women at standard-class prices" is a coherent pitch. It's just not one you can verify from a listing.
One last inconsistency, small: the イベント tab reads 現在イベントを開催しておりません — no events currently running — while four notices rotate on the front page, one of them a weekday campaign with terms that appear nowhere else.
About the shop
club OASIS (クラブオアシス). Soapland, standard class, Yoshiwara, 東京都台東区千束4-45-3. Tel 03-5808-2444 — say 「ヘブン見た」. Official site c-oasis.net. Open 9:00–24:00. Free shuttle from Minowa station (Hibiya line); no parking. Board (tax-incl): 60 min ¥22,000 / 90 min ¥30,800 / 130 min ¥38,500, marked オールタイム — one price, any hour. 本指名料 ¥1,000; no photo-nomination fee listed. The system page advertises a ¥21,000 bath fee on a 110-minute course as currently waived, plus a 20-minute extension, while the coupon page prices the regular 110-minute 総額 at ¥38,500 — the same figure charged today for 130 minutes. Coupons, none expiring: new-arrival/campaign girl (from Apr 2025) ¥3,000 off 130 min, ¥1,000 off 60/90; free-customer (from Mar 2023) ¥1,000 off 60/90, quote 「ヘブンのフリー割引き見た」; birthday-month (from Mar 2023) ¥3,000 off 130, ¥1,000 off 90, not valid on 60, photo ID and members card required, reusable within the month. No discounts combine. A front-page banner restricts the campaign-girl discount to weekdays and first nominations only; the coupon page states neither restriction. Booking: net 15 days ahead to the previous day, 24h; phone 7 days ahead to same day, 8:30–24:00. Roster of 43, ages 20–40, median 23, 51% H-cup or larger; 25 with a published shift this week, 18 with none; 13 working today, peaking at 13 between 14:00 and 16:00 and falling to 1 after 22:00. 720 reviews, most recent 90 averaging 4.70. Japanese-language listing and phone line; no English support is indicated anywhere, and the shuttle is arranged by phone. No under-18s admitted and none employed.
The verdict
| Item | Rating |
|---|---|
| 90→130 min at ¥192.50/min — the cheapest time in Yoshiwara I've costed | ★★★★★ |
| ¥1,000 nomination fee; nothing at all to pick from photos | ★★★★★ |
| Free Minowa shuttle, confirmed by customers as near-zero wait | ★★★★★ |
| Female front desk — a real differentiator the shop never advertises | ★★★★★ |
| Every yen figure reconciles, tax applied correctly, three for three | ★★★★☆ |
| 720 reviews, most recent 90 averaging 4.70 over 79 days | ★★★★☆ |
| Net booking 15 days ahead vs 7 by phone — and 89% of customers use it | ★★★★☆ |
| Diary board: 10 posts before noon on the day I read it | ★★★★☆ |
| Two-woman service built on the 35–40 cohort — good positioning | ★★★★☆ |
| One price 9am–midnight, from 13 women at 3pm down to 1 at 22:30 | ★★★☆☆ |
| 43 on the roster, 18 with no shift at all this week | ★★☆☆☆ |
| All 90 review replies are the identical macro | ★★☆☆☆ |
| Front-page banner adds weekday/first-visit limits the coupon page omits | ★★☆☆☆ |
| 会員10万人 and インターネット会員17万人, same page | ★★☆☆☆ |
| One ¥3,300 discount advertised as 23% off and as 9% off | ★★☆☆☆ |
| A ¥21,000 bath fee that appears in no published total | ★☆☆☆☆ |
| Accessibility for non-Japanese customers | ★☆☆☆☆ |
| Overall | ★★★★☆ |
Four stars, and I want to be clear about why, because I've just spent two thousand words taking the pricing apart.
The transaction is excellent. ¥38,500 for 130 minutes is ¥296 a minute in a district where I have costed high-class houses at three times that, the nomination fee is ¥1,000 in a trade that routinely charges ten, the last forty minutes are the cheapest forty minutes I have found in Yoshiwara, and 720 people have come back to say so at better than four and a half stars. There is a free car from the station. There are women at the front desk. Ten diary posts went up before lunch on the day I read the page. None of that is packaging — that is a business that works, and has worked long enough that two of its coupons predate the current tax year by three.
What doesn't work is the way it describes itself. Four documents state this shop's prices and no two of them agree on what "regular" means. The headline discount badge is a per-minute figure dressed as a price cut, which is how the same ¥3,300 comes out as 23% in one box and 9% in the next. And the ¥21,000 bath fee sits at the top of the system page doing the single most effective thing a number can do, which is to make a fair price look like a bargain — when the fair price was already the point.
So, concretely. Buy the 130. It is the only course on this board worth buying and the reviews say everyone already knows. Go between 11:30 and 18:00, when you are picking from nine to thirteen women rather than one, at the identical price. Sunday, not Friday — sixteen on the board against eight. Book on the web, fifteen days out, because the phone line gets you seven. Take the shuttle from Minowa. And budget ¥38,500, or ¥35,200 if you're nominating a campaign girl — then phone and confirm the weekday-and-first-visit question before you count on the second number, because the shop's own two pages disagree about it and only one of them will be standing next to you at the desk.