Update: Byakuya (adult entertainment / Yoshiwara soap) "Tsubaki Nanami (G-cup)" — a horny mature woman who proudly proclaims herself an out-and-out masochist. An adult entertainment experience report: with her ravenous, almost devouring style of sex she made me cum over and over and unleashed her lust to her heart's content. | KASU NIKKI - Tokyo Japanese Local Adult Service & Escort Reviews

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Update: Byakuya (adult entertainment / Yoshiwara soap) "Tsubaki Nanami (G-cup)" — a horny mature woman who proudly proclaims herself an out-and-out masochist. An adult entertainment experience report: with her ravenous, almost devouring style of sex she made me cum over and over and unleashed her lust to her heart's content.

User impressions after following up on this report (2026/02/09)
■Handle name
Osouji Daisuki

■Estimated age of the cast
around 35 years old

■Photo retouching level
Different person－－－－★As-is
(5/5 points)

■Similar celebrities
Not particularly similar to anyone, but she gives off the vibe of a beautiful celebrity wife.

■Body type
Slim－★－－－Plump
■Bust size
Flat－－－★－Very busty
■Would you repeat?
I want to request the same woman ●
I want to try a different woman at the same shop
Free pick might be OK
Never use again
Other:
Appearance (face) A
Body (figure) A
Service (hospitality) A+Technique (play) A+
Overall rating A+
※ S to G. This is purely subjective and reflects value for money.
S…Premium top level
A+…One step away from S level
A…Top level
B+…One step away from A level
B…Good
C…Average
D…Somewhat below average, not great
E…Bad
F…Worst level
G…Absolute worst, landmine level
■Experience report
I had another business trip to Tokyo, so I went to Yoshiwara. This time I didn't make a reservation in advance and chose someone who was available that day.

Sorry for the rough writing.

This visit was my first time at Byakuya. It's a shop I've had my eye on for a while, but I hadn't had the chance to visit until now. This was my first visit.

This time I went directly to the shop by taxi. The woman I was matched with was Tsubaki Nanami.

Although she was listed as immediately available, for some reason I wasn't shown through, and I ended up waiting in the waiting room for about 30 minutes.

During that time people who came in after me kept being taken ahead of me, and the amounts they paid were all over the place.

There seem to be various discount systems. Advance research seems necessary.

After a fairly long wait I was finally shown through. As others have said, the building is single-story with rooms lined up along a long corridor. Because of that, wait times for the restroom and for coming and going to rooms are long. Finally I met her in the corridor; we held hands and walked down the long hallway.

We entered the room and she greeted me. Her face was as beautiful as on the panel. I thought she was in her mid-30s.

Her figure was exactly as on the panel, which got me excited. She helped me undress and then we finally started.

■Shop name

Byakuya — Yoshiwara High-Class Married-Woman Soapland

From Shin Kasu Nikki
■Website
https://www.byakuya.jp/

■Course duration & price

120 minutes · ¥62,000

■Handle name

Kenshirou

■Cast
Tsubaki Nanami (33)
T.161 B.95(G) W.56 H.86

■Estimated age of the cast

early 30s

■Photo retouching level

Different person－－★－－As-is

(3/5 points)

■Similar celebrity
None in particular

■Body type

Slim－－★－－Plump

■Bust size

Flat－－★－－Very busty

■Would you repeat?

I want to request the same woman
I want to try a different woman at the same shop ●
Free pick might be OK
Never use again
Other:

Appearance (face) B

Body (figure) BService (hospitality) A

Technique (play) A

Overall rating B

※ S to G. This is purely subjective and reflects value for money.

S…Premium top level

A…Top level
B…Good
C…Average
D…Somewhat below average, not great
E…Bad
F…Worst level
G…Absolute worst, landmine level

Experience report

■Procedure before start

As usual, when I get horny on my days off I feel I should head to Yoshiwara, but if I slow my pace I'll be excluded from the VIP list, so lately I've been playing on the thin line between desire and a sense of duty: I have to go soon.

Posting on this site as a memo has somehow come to occupy a large part of my priorities.

So, as usual I got horny on my day off and had been checking which girls were working since the morning. One girl I'd been interested in before seemed likely to be available in the afternoon, so I called the shop.

Phrases like "a girl I've been interested in for a while" are probably ones anyone who has written experience reports has used at least once.

I can't remember if I used that phrase in past reports, but for some reason it stuck with me this time.

Anyway, I asked the person on the phone, "Is Tsubaki-san available?" and they easily made a same-day reservation, so I headed to Yoshiwara.

Recently I've often targeted AV actresses, so it had been a while since I'd gone after a regular girl.

Byakuya is the type of place where you take off your shoes and enter in slippers, which is convenient.

Also, many of the boys are young, and the atmosphere isn't bad.

Come to think of it, the person on the phone was also pleasant.

I've used it a few times and had the same impression each time, so that's probably what kind of place it is.

To be frank, I've been to more high-class places than this, but I think it's nice.

■About the woman

While I was drinking oolong tea in the waiting room, despite there being several customers I was called quickly, so I felt lucky.

I wondered why some people were waiting for such a long time, and I mentally bowed "after you" as I left the waiting room.

When I exited the waiting room, the girl was waiting at the first dead end inside the single-story shop.

She wasn't exactly slender nor voluptuously busty, but she exuded an age-appropriate sexiness.

My first impression was that of a sexy mature woman.

In the room she asked what kind of sex I liked, so I replied that I like to be the aggressor. She said she was happy to hear that because she is a hardcore masochist.

After a few minutes we confirmed each other's styles, so I didn't hold back and began to dominate.

■About the session

Kasu Nikki Approved! Introduction to Top-Notch Adult Entertainment Shops

Yoshiwara Soapland
'Segretario'

■Segretario's
■Segretario's work schedule