The shop is ニュー姫 個室サウナ — New Hime Koshitsu Sauna. A soapland in Shinjuku, open 9:00 to 24:00 on weekdays and 7:00 to 24:00 on Saturdays and Sundays, run out of the sixth floor of the Shinjuku Kado Building at Shinjuku 2-19-9, part of the Kadoebi group. Fifteen hours a day, seventeen on weekends, one phone number: 03-3354-6700.
Cityheaven files it as ソープ（激安／新宿・歌舞伎町） — soap, budget tier, Kabukicho. Two of those three things are worth arguing with.
The Name Is a Category, Not an Amenity
First, before anyone books expecting a spa day: 個室サウナ means "private-room sauna," and it is not a description of the facilities. It's an artifact of 個室付浴場業 — the "private-room bathhouse business" category that soaplands in Japan are licensed and operated under. A great many of these shops carry bathhouse vocabulary in their registered names for that reason, and it has been true for decades.
So the sauna in the sign is a filing cabinet, not a feature. If you're reading Japanese shop names as spec sheets — and if you're new to this, you will be — this is the first place that habit breaks. The name tells you the regulatory category. The price sheet tells you the product.
The Listing Says Kabukicho. The Address Says Ni-chome.
Second thing worth knowing before you walk anywhere. The Cityheaven breadcrumb runs 新宿・大久保・高田馬場・中野ソープ → 新宿・歌舞伎町ソープ, and the tag under the shop name says Kabukicho. The address is Shinjuku 2-chome.
Those are not the same place, and they're not even the same direction. Kabukicho is north of the station. Ni-chome is east-southeast — Tokyo's best-known LGBTQ+ nightlife district, and a genuinely odd address for a soapland, given that Tokyo's soap trade is overwhelmingly concentrated up in Yoshiwara. Follow the listing's area label out the north side and you're twenty minutes wrong.
The shop, to its credit, doesn't use the listing's geography. Its own access copy gives you three different numbers from three different origins, and they're all defensible:
- JR Shinjuku, East Exit — 8 minutes on foot.
- Shinjuku-sanchome subway station — 3 minutes.
- Exit C7 via the Shinjuku underground passage — "10 seconds."
The ten seconds is doing marketing work, but the pitch underneath it is real and it's not about speed. The copy says it plainly: 雨でも濡れずに人目につきづらい — you don't get rained on, and you're hard to spot. That's the actual product being advertised. Not proximity. Weatherproofing and discretion, sold as an access route. Shinjuku has a subterranean city under it, and this shop's entire directional pitch is use it and nobody sees you arrive.
Two Sheets, and the Cheap One Exists Four Hours a Week
Now the numbers. There are two price lists, which is the whole story.
The normal sheet (9:00–24:00):
| Course | Price | Per minute |
|---|---|---|
| 70 min | ¥24,000 | ¥343 |
| 90 min | ¥31,000 | ¥344 |
Nomination: ¥1,000.
The weekend sheet — Saturdays and Sundays, 7:00 to 9:00 only:
| Course | Price | Per minute |
|---|---|---|
| 50 min | ¥16,000 | ¥320 |
| 70 min | ¥21,000 | ¥300 |
| 90 min | ¥28,000 | ¥311 |
Repeat nomination (本指名, asking for someone you've had before): ¥2,000. Online nomination (ネット指名): ¥1,000.
Read the operating hours against that window. Weekdays run fifteen hours, five days: seventy-five. Weekends run seventeen hours, twice: thirty-four. A hundred and nine hours of business a week, and the cheap sheet is live for four of them — 3.7% of the shop's open time. The 50-minute course doesn't exist outside it at all. It is the only sub-70 product in the building and you can buy it during two breakfasts a week.
The Discount Is a Constant, and It Never Touches the Last Twenty Minutes
Subtract the sheets from each other. Seventy minutes: ¥24,000 to ¥21,000. Ninety: ¥31,000 to ¥28,000.
¥3,000 both times. Not a percentage — a flat amount. Which means the discount is worth 12.5% on the 70 and 9.7% on the 90: the longer you book, the less the window is worth to you, proportionally.
Then look at what it costs to go from 70 to 90 on each sheet. Normal: ¥31,000 − ¥24,000 = ¥7,000. Weekend: ¥28,000 − ¥21,000 = ¥7,000.
Identical. The last twenty minutes cost ¥350 a minute on both sheets, and the discount never reaches them. The window discounts the first seventy minutes and stops. That also means the 90-minute cell is the only course on the normal sheet that costs more per minute than the shorter one next to it — the marginal rate of ¥350 sits above the ¥343 average and drags it up.
The weekend sheet is stranger, and better. Its marginal steps are ¥250 a minute from 50 to 70, then ¥350 a minute from 70 to 90. So within one window the cheapest twenty minutes in the entire building and the most expensive twenty minutes in the entire building are adjacent, and the 70-minute cell sits exactly at the bottom of the curve at ¥300 a minute. Not the shortest course. Not the longest. The middle one.
All-in, with a nomination fee attached, every cell the shop lists, cheapest first:
- Weekend 70 + online nomination — ¥22,000 → ¥314/min. The best number in the building.
- Weekend 90 + online nomination — ¥29,000 → ¥322/min.
- Weekend 70 + repeat nomination — ¥23,000 → ¥329/min.
- Weekend 50 + online nomination — ¥17,000 → ¥340/min.
- Normal 90 + nomination — ¥32,000 → ¥356/min.
- Normal 70 + nomination — ¥25,000 → ¥357/min.
Note where the repeat-nomination fee lands. The normal sheet charges one undifferentiated ¥1,000 to nominate. The discount sheet splits it and charges ¥2,000 to ask for someone you've already met — a third of your ¥3,000 saving, clawed back for loyalty. The cheap window is cheapest for people who haven't been. (The normal sheet doesn't break out 本指名 separately at all, so if you're a regular, confirm which fee applies on a weekday before you're standing at the desk.)
The Window You Cannot Book the Morning Of
The booking ladder, printed twice on the page: same-day and next-day reservations from 8:00 a.m. Two-days-ahead from noon.
On a weekday that's fine — doors at 9:00, phone at 8:00, an hour of runway.
On a weekend, the shop opens at 7:00 and the same-day line opens at 8:00. The doors are unlocked for a full hour before you're allowed to call about today. Which means the first hour of the discount window — 7:00 to 8:00, Saturday and Sunday, the cheapest hour on the cheapest sheet — cannot be booked same-day at all. It has to be taken the day before from 8:00 a.m., or two days out from noon.
That is the single most actionable thing on the page, and it's assembled from two lines sitting in different sections that never reference each other. The discount is real; the access to it is gated by a clock nobody points at.
One ambiguity I can't resolve from the page and won't invent: the sheet says 土日（7:00〜9:00）限定料金 without specifying whether 7:00–9:00 governs your start time or the whole session. If it's the start — and that's the ordinary reading — a 90-minute course beginning at 8:59 runs to 10:29 at window pricing. Worth exactly one question at booking.
Today's Board: Two Blocks, One Gap, and an Hour With Nobody On It
Nineteen women on the schedule for today, Wednesday the 5th. Heights from 145 to 173 centimeters, cups from B to H — the roster copy's promise of よりどりみどり, "take your pick," is at least dimensionally accurate.
The shape of the day is what interested me. Nine shifts start between 9:00 and 10:30. Ten start between 14:00 and 19:00. Not one starts in between. There is a hard seam at midday: the morning block clocks in together, and from 10:30 to 14:00 the board adds nobody. Coverage peaks around nine on shift late morning and ten in the 19:00–21:00 stretch, then empties fast — four on at 22:00, three at 22:30, and the last shift ends at 23:00 against a 24:00 close. On today's published board, the final hour of business has nobody on it.
The thin end is the other one, though. From 9:00 to 10:00 there are two women on the board. If weekend mornings staff anything like a weekday morning — and I'm extrapolating from a Wednesday, which is a real limitation, the weekend board isn't shown — then the cheap window is also the empty window. That's the trade the ¥3,000 is paying for. You're not getting a discount on the shop; you're getting a discount on the shop's smallest roster.
One more thing off the board, and it cuts the other way. Of the ten women in the manager's picks, seven are on the morning shift. The shop's own recommendations skew daytime, hard, at a price identical to the evening's. Whatever the 9:00-to-10:00 hour is short on, it isn't the house's confidence.
The Verdict
- Sticker honesty: ★★★★★ — two sheets, five cells, one nomination fee, no option ladder, no entry fee, no transport coefficient. You can hold the entire pricing structure in your head, which is not something I get to write often.
- Rate structure: ★★★☆☆ — ¥343 a minute on the normal sheet is the top of what I'd call reasonable, and the 90 costing more per minute than the 70 is the wrong way round. Judge it against soaplands, not against outcall.
- Best cell in the building: the weekend 70 at ¥21,000, booked with an online nomination for ¥22,000 all-in — ¥314 a minute, and the bottom of the curve. Book it the day before.
- Worst value: the weekend 50 at ¥16,000. It's the cheapest ticket and the third-worst rate in the window; twenty more minutes cost ¥250 each, the cheapest minutes the shop sells. If you're already in the window, do not buy the short one.
- Access: ★★★★★ — the C7 underground approach is the most useful sentence on the page. Ignore the Kabukicho tag; you want Shinjuku-sanchome and the tunnel.
- Booking friction: ★★★☆☆ — a two-day horizon and a same-day line that opens an hour after weekend doors. The cheapest hour of the week is next-day-only and nothing on the page says so.
- Going back: ○ — for a Shinjuku soapland at ¥24,000 with a fifteen-hour clock and a sheet with nowhere to hide a fee, yes. On a Saturday, before nine, booked Friday morning, at seventy minutes.
I went to Ni-chome expecting to write about a bargain tag and spent the ride home on a two-hour window instead. New Hime Koshitsu Sauna sells the same product all week and prices it two ways, and the cheaper way is live for four hours, hands back a flat three thousand that stops short of the last twenty minutes, taxes you for coming back, and starts sixty minutes before you're permitted to book it. None of that is hidden. It's just distributed across four sections of a page that never adds itself up.