😈 Sakusei Kenkyujo (The Seed Extraction Lab) / Umeda
The Next Generation of “M-Seikan” has arrived like a comet, now reigning at the peak of the industry.
In an era where the “M-Seikan” (Masochistic Sensual Massage) scene is aging, we bring you a hybrid professional lineup of “Chijo” (Nympho/Succubus) therapists. They combine youthful energy with top-tier technical quality.
We also feature a roster of highly skilled veterans with refined techniques.
- Will you enjoy the next-gen therapists who have evolved rapidly by learning from the masters?
- Or will you be dominated by our hybrid succubi, where youthful innovation meets legendary ancient techniques?
The choice is yours.
🏛️ Store Information
Sakusei Kenkyujo (The Seed Extraction Lab)
- Service Type: Delivery Health (Femdom-style Massage / Umeda & Kitashinchi)
- Phone: 06-6366-8755
- Tip: Mention “I saw you on CityHeaven” for the best service!
- Hours: 24 Hours / Open Year-Round
- Dispatch Area: Umeda, Osaka [Details]
🔗 Official Links
- Official Website (PC): https://sakuseikenkyujo-umeda.com/
💡 Tips for English Speakers
- M-Seikan: This refers to a “Masochistic” massage experience where the female therapist takes a dominant role.
- Succubus/Chijo Experience: The term “Sakusei” literally means “Seed Extraction,” implying a highly intense, draining, and pleasurable experience.
Would you like me to create a short “How to Order” guide in English for international customers?
💎 Pricing System (Transparent & No Hidden Fees)
Our pricing is straightforward. We start the session immediately upon arrival, giving you an extra 15 minutes of value compared to other shops.
❖ Course Fees (Tax Included) ❖
| Duration | Effective Time* | Price (JPY) |
| 60 min | (Equivalent to 75 min) | ¥29,700 |
| 80 min | (Equivalent to 95 min) | ¥35,200 |
| 100 min | (Equivalent to 115 min) | ¥40,700 |
| 120 min | (Equivalent to 135 min) | ¥46,200 |
| 140 min | (Equivalent to 155 min) | ¥51,700 |
| 160 min | (Equivalent to 175 min) | ¥57,200 |
| 180 min | (Equivalent to 195 min) | ¥62,700 |
*We provide 15 extra minutes of value by starting the session immediately!
❖ Other Fees ❖
- Registration Fee: ¥1,100
- First-time Nomination: ¥1,000
- Returning Nomination: ¥2,000
- Special Nomination: FREE (Limited Time Offer!)
- Extension (30 min): ¥15,000
- Transportation Fee: ¥0 – ¥6,600 (Depending on area)
✅ Our Promise
- Transparent Pricing: You will never be charged more than the prices listed above.
- Credit Card Friendly: No credit card processing fees. All major cards accepted.
- Immediate Start: No wasted time—your experience begins the moment we meet.
We look forward to serving you!
📍 Dispatch Area & Service Details
【Shop Name】
Sakusei Kenkyujo (The Seed Extraction Lab)
【Operating Hours】
24 Hours / 7 Days a week
【Base Location】
Umeda, Osaka
【Contact Number】
06-6366-8755
【Available Service Locations】
We provide out-call services (delivery) to the following:
- Private Residences
- Love Hotels
- Business Hotels
🚕 Transportation Fees (One-way Travel Time)
Fees are calculated based on the travel time from our base in Umeda.
- FREE: Local/Immediate Area
- ¥1,100: Under 10 mins
- ¥2,200: 10+ mins
- ¥3,300: 20+ mins
- ¥4,400: 30+ mins
- ¥5,500: 40+ mins
- ¥6,600: 50+ mins
- Over 60 mins: Please inquire for a quote.
Note: Please feel free to ask our staff for the exact fee when you provide your location.
🔥 Service Menu & Options (All Included for FREE)
At the Seed Extraction Lab, the following “Core Play” is included in your course fee at no extra charge. Experience the ultimate domination.
【Standard Free Play】
The Finale: Seed Extraction Control (Total Bliss & Drainage)
Sensory Play: Eyemasks, Earplugs, Feather Touch
Breast & Nipple: Nipple Licking & Intense Stimulation
Body Service: Full-body “Lick Service” by the Chijo (Succubus)
Intimacy: Deep French Kissing, Dirty Talk (Femdom Style)
Oral Technique: Deep & Wet Fellatio, Ball Licking, 69 Position
Domination: Face Sitting (Face Riding)
Hand & Body: Handjob, Riding Sumata (Thigh-press), Mouth Ejaculation
Deep Stimulation: Prostate Massage / P-spot Stimulation
Scenario: “Gyaku-Yobai” (Surprise Night Visit/Ambush)
The Full Experience: All Nude service
Ultimate Release: Unlimited Ejaculations within the time limit
💡 Information for Visitors
- We are an Out-call (Delivery) service. Please provide your hotel name or address when booking.
Girls’ Review
Profile
Name: Mia Minami
Age: 31
Measurements: T159 / 86 (E) / 59 / 87
Questions for the Girl
Q: Special nomination fee (first time)
A: Free for a limited time
Q: Special nomination fee (after second visit)
A: Free for a limited time
Q: Job
A: Gravure model
Q: What kind of reactions from men excite you?
A: When they shyly tell me what they want me to do
Q: What are you best at teasing?
A: Oral play, nipple licking, and anal licking
Q: What’s something a man said that made you happy?
A: “Thank you,” “You’re cute,” “That feels good,” “You healed me,” “You’re sexy,” “I’m falling for you,” “Your eyes are beautiful,” “Let’s meet again”
Q: What kind of men turn you on?
A: Men with a naturally erotic vibe
Q: If the world were ending tomorrow, what would you do?
A: Go meet the people I love and want to see!
Q: What would you like to be called?
A: Whatever you like♡
Q: Lastly, a message to customers!
A: I want to spend a fun and naughty time together♡
Appeal Comment
Hi there🎶 I’m Mia Minami✨
If you want to relax and be healed,
or if you want to be teased a little, I think we’ll get along🫶🏻
People often tell me they feel calm when they’re with me,
and I love spending cozy, relaxing time close together🌿
But actually, I also have a slightly mischievous, teasing side😈
I love using my tongue,
and before I know it, I get completely absorbed in it…😚💕
When I see your reactions, I might end up teasing you a bit more🤭
Depending on the mood of the day, I can be gentle or a little teasing,
so if you leave it to me, I’ll make sure you feel good🫧
If you want to feel relaxed yet excited, come see me🫶🏻
💚My Highlights💚
- I love using my tongue♡ Deep, affectionate oral techniques
- Soft and fluffy E-cup
- A soft, comforting body that feels amazing to hold
- I carefully use my tongue on nipples, shaft, and even more intimate areas😘
- Toe play is OK♡
- Non-smoker, no tattoos, enjoys drinking🍶
💜Personal Options💜
👙 Sheer cosplay + hand-play gloves
¥1,000
👅 Deep throat technique
¥3,000
A new kind of experience you can enjoy just by lying down
💧 Water play
¥2,000
Please consult in advance
Manager’s Comment
Her soft, fair skin and irresistibly plush body feel like being gently wrapped in warmth.
That single moment of contact is enough to make anyone’s heart melt.
With a gentle smile and slightly playful gestures,
Mia quietly ignites a “spark of pleasure” in a soothing atmosphere.
Her specialty is careful, affectionate tongue-based techniques.
She especially loves oral play, and her dedication to giving pleasure is truly natural.
The way she slowly traces with her tongue, wrapping you in warmth and sensation,
will surely become an unforgettable experience.
“I want to do lots of things that make you feel good…”
With that soft, sweet whisper,
she delivers an exquisite moment that melts both body and mind.
For those who want to relax, and those who want to be cared for—
time with Mia will gently and deeply fulfill you.
Her exciting video
Personal Experience
⭐ 4.5
Looks: 4.5 Play: 5 Price: 4 Staff: 4.5 Photos: 4.5
“I Was Completely Healed!”
After making a reservation by phone, I contacted the shop once I arrived at the hotel.
After a short while, there was a knock on the door. I was given an eye mask, got onto the bed, and waited. She entered the room just as I was.
Her voice was very gentle and soothing, which helped ease my nervousness. She carefully asked about my preferences and boundaries, and I got the impression that she paid close attention to my reactions.
The way she gradually built things up from the beginning was excellent. The balance of intensity and gentleness was just right, and she skillfully adjusted based on my responses. At times I was so absorbed that I completely lost myself.
It was a very satisfying experience from start to finish. It was easy to relax even for a first-time visit, and I feel like she’s someone I’d definitely want to see again.
If this review inspired you and you’d love to meet amazing companions like Mia Minami
, my consulting service for safe and enjoyable dating/escort experiences is a great place to start.
I’ll guide you through choosing the right venues and creating unforgettable moments — with safety, discretion, and fun in mind.
