サティアンまーと — Sathyan Mart is a deriheru, standard class, filed on Cityheaven under 池袋北口・西口 — the north and west exits of Ikebukuro — and dispatching across 東京都池袋（豊島区）, Toshima ward. Phone 03-5904-9125. Hours 10:00～翌5:00, 定休日 無し — nineteen hours a day, not one closed day in the year. It's run by what the listing calls 『とあるグループ』, with named affiliates イクイクサークル and やりすぎさーくる. The pitch, verbatim: 「一度利用して頂いたら他店を使う理由がなくなります！」 — use us once and you'll have no reason to use anyone else.
The listing carries a price banner. It says 60分15000円, struck through with 31%OFF, landing at 75分13000円.
Hold onto that number. ¥13,000.
The Price Page Has No Prices On It
Cityheaven gives every shop a dedicated 料金システム page. It's the one tab a customer clicks when he wants to know what something costs. Sathyan Mart's is at /sathyanmart/system/, it loads fine, it has a proper title — 料金システム：サティアンまーと — and a meta description promising to guide you through the fee structure.
I pulled the whole page and searched the raw source. There is not a single yen figure on it. Not one course length. Zero prices, zero durations, nothing. The page is a header, a navigation bar, and a footer wrapped around an empty space where a price table is supposed to be.
I want to be precise about what that is and isn't. It isn't illegal, it isn't unusual in this industry, and it isn't proof of bad intent — plenty of shops route pricing through the phone on purpose. But it is a fact worth sitting with: the shop whose entire brand is a declaration about cost performance publishes no cost. The only numbers anywhere on this listing live inside coupon fine print and event banners, which are marketing surfaces, not price lists.
So the receipts are not a supplement here. They're the only price list that exists.
Forty Receipts
Cityheaven reviews on this shop carry a 料金の総額 field — total paid — plus the course length, the woman, her age, a date, and four sub-scores. The board holds 2,169 reviews all-time. I parsed the front four pages and pulled every entry with a complete money line: 40 receipts, running 2025/10/17 through 2026/09/15, most of them from the last six weeks.
| Median | Mean | Cheapest | Dearest | |
|---|---|---|---|---|
| All 40 receipts | ¥23,650 | ¥24,318 | ¥16,000 | ¥52,800 |
Total across the sample: ¥972,700 over 3,500 minutes — a blended ¥278 per minute.
Now put that next to the banner. ¥13,000 for 75 minutes is ¥173 a minute. The real blended rate is sixty percent higher. The median receipt is ¥23,650, which is ¥10,650 above the advertised price — 1.8 times it.
And here's the line that matters most, the one I checked three times because it seemed too clean:
Not one of the forty receipts came in at or below ¥15,000. Zero. The cheapest human being in the sample paid ¥16,000, and that was a 75-minute booking by a three-plus-times regular. Only 7 of 40 — under a fifth — landed below ¥20,000 at all. Thirty-three of forty paid twenty thousand or more.
The ¥13,000 is not a lie, exactly. It's a doorway nobody walks through.
The Nomination Premium Is The Price
So where does the money go? The coupon fine print answers it, if you read past the orange badge.
Every coupon on this listing carries the same sentence: 「別途プレミア料金によりキャスト別に特別料金が掛かります」 — a separate premium fee applies, varying by cast. And the shop's own worked example, printed inside the new-customer coupon, is this:
例）60分20900円→新規割75分20900円となります。
Read that again. The shop's illustration of its own ¥13,000 new-customer deal uses ¥20,900 as the starting figure. Not ¥15,000. The discount doesn't lower the number at all — it buys you fifteen extra minutes at the same price. That's an honest thing to print, and I'll give them full credit for printing it, but it means the headline and the example on the same page describe different transactions.
Then the event page names the premium tiers outright:
- 厳選プレミアフリー — cast with nomination fees of ¥17,600～¥18,700, offered at 60 min ¥12,000
- 超プレミア / トッププレミア — cast with nomination fees of ¥19,800～¥25,300, offered at 60 min ¥16,000
Stop and look at the size of those. The nomination premium runs ¥17,600 to ¥25,300. The entire advertised course is ¥13,000–¥15,000. The surcharge is bigger than the product it surcharges. This is a shop where the base fare is the small print and the premium is the actual bill.
The receipts confirm it from the other direction. Of the 40 receipts, 21 carried a readable course label — and all 21 of them say「プレミアランク」. Every single one. Not a majority, not a strong tendency: a clean sweep. There is no evidence in this sample that a non-premium booking happens here at all.
Best confirmation of the lot: the seven 60-minute receipts. Median ¥19,800, and a floor of ¥17,600 — and ¥17,600 is exactly the bottom of the published premium range. The cheapest hour anyone in this sample bought equals the cheapest nomination fee on the board. The course fee has stopped being a separate thing.
Thirty Percent of This Ikebukuro Board Is Uguisudani
Here's the finding that isn't about money, and the one I'd want told to me before I dialed.
The weekly shift board covering 9/16 through 9/22 lists 166 shifts across 89 different women. Read the names and a prefix keeps appearing: 鶯谷店 — Uguisudani branch. 鶯谷店みくりん. 鶯谷店いわたみい. 鴬谷店しふぉん. Twenty-seven of them.
27 of the 89 women on this Ikebukuro shop's board — 30% — are labeled as the Uguisudani branch's cast. They account for 52 of 166 shifts, 31% of the week's coverage. Uguisudani is a different neighborhood, four stops around the Yamanote from here.
The shop is not hiding this; the prefix is right there in every name, which is more disclosure than it strictly owes. But you have to notice it, and nothing on the page points at it. And it has a concrete, checkable consequence, because the discounts are geographically fenced in their own fine print:
- The pre-booking discount (事前予約割): ※池袋北口限定 — Ikebukuro north exit only.
- The premium free course: ※池袋北口ホテル案内のみ — north-exit hotel guidance only.
- The new-customer coupon: ※ホテルは池袋駅北口の線路沿い先のホテルをご利用ください.
So roughly a third of the names you can browse belong to a branch that sits outside the fence the savings are drawn around. I can't tell you from outside exactly how the shop handles a 鶯谷店 booking on an Ikebukuro-only promo — that's a question for the phone, not for me to invent an answer to. Ask it before you choose a name. It's the single highest-value question on this listing.
Twenty Years Old, and Ten New Faces in Seven Days
The roster page says 275 人 — two hundred seventy-five women listed. Against 89 unique names on the week's board, that's 32% weekly activation, which is normal-to-thin for a directory that size.
The ages are not thin, they're narrow. Across the 89 women on the board: mean 20.6, median 20, range 18 to 29, and 63% of them under 21. The 40 reviewed women land at exactly the same place — mean 20.6, nobody over 24. That congruence is actually a point in the shop's favor: the women getting written about are the same population as the women on the board, which is not always true and is worth knowing.
Turnover is the loud number. The new-face list shows ten women entering between 9/14 and 9/20 — ten in a single week, against a 275-name roster. Set that beside the 新人割, which is explicitly 1ヶ月間限定 — a one-month window offering +10 minutes free and ¥2,000 off. At ten arrivals a week, a large slice of this board is inside its discount month at any given moment, and three of my forty receipts are tagged 新人割コース. That's a genuine, usable edge: the newest names are the only place the advertised savings reliably show up in a real receipt.
The One Thing I Can't Reconcile
Honesty requires flagging what didn't add up.
The premium free-course coupon prints a clean breakdown: 通常 60分23000円, with 入会金 0円 and 指名料 7000円, discounted to 60分16000円 by zeroing the nomination fee. Straightforward.
Except the conditions on that same coupon say it applies to cast 「指名料金19800円～25300円のプレミアキャストのみ」 — nomination fees of ¥19,800 to ¥25,300.
A ¥7,000 nomination fee in the price table, and a ¥19,800–¥25,300 nomination fee in the conditions, on the same coupon. Those can't both describe the same booking. I don't know which governs, I'm not going to guess, and I'd bet there's a mundane explanation involving two different fee lines sharing a word. But it's on the page, it's about money, and if you're using that coupon it's worth one sentence at reception.
The Verdict
- Published price transparency: ★☆☆☆☆ — the official 料金システム page contains zero prices and zero course lengths. For a shop branded on cost performance, that's the whole ballgame.
- Coupon fine-print honesty: ★★★★☆ — they print the premium disclaimer on every coupon and even work an example at ¥20,900 rather than ¥15,000. Buried, but not concealed.
- Banner accuracy: ★☆☆☆☆ — ¥13,000 advertised; ¥23,650 median across 40 receipts; zero of 40 at or below ¥15,000.
- Disclosure of the Uguisudani cast: ★★★☆☆ — the 鶯谷店 prefix is on every name, which is real disclosure. Nothing explains what it means for the north-exit-only discounts.
- Photo accuracy: ★★★★★ — 4.80 across 40 reviews, one of the strongest numbers on the whole listing.
- The women: ★★★★★ — 4.84, and the reviewed population matches the board's population exactly. Nobody is disputing the product.
- Value as the customers score it: ★★★☆☆ — 4.55, lowest of the four axes, 12 of 40 at 4.0 or below.
- Roster depth: ★★★☆☆ — 275 listed, 89 on the week, 32% activation.
- Hours: ★★★★★ — 10:00 to 5:00 the next morning, 365 days a year.
- Going back: ○ — but at a hundred minutes, on a new-face discount, with the total confirmed on the phone before anyone leaves.
Here's how I'd spend money in this building. Do not book 60 or 75 minutes — those are the lengths the banner pushes and they are the worst value on the board, with 60-minute receipts running about ¥330 a minute against ¥214 a minute at 100 minutes. The advertised durations are the expensive ones. Book 100 minutes, where the median receipt is ¥21,450 and eight people have already proven the number. Get the total on the phone before you hang up — say the name, ask what the premium adds, and make them say the final figure out loud, because the price page will not do it for you. Ask whether your chosen woman is 池袋 or 鶯谷店, and if it's the latter, ask what survives of the north-exit-only discounts. And treat the new-face window as the only reliable discount here, because it's the one that shows up in actual receipts.
The women at Sathyan Mart are, by the numbers its own customers publish, very good — 4.84, and the photographs tell the truth, which is rarer than it should be. That's a real thing and I don't want it lost in the arithmetic. But a shop that declares itself the cost-performance champion and then ships a blank price page is asking you to take the most checkable claim it makes entirely on faith. Forty people already checked it for you. The answer is ¥23,650, not ¥13,000, and once you know that going in, this is a perfectly good place to spend an evening. The number on the banner was never the rent. It was the airshaft unit.