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Information

Providing ‘Comfort’ to Men

My establishment emphasizes the treatment environment and technical aspects that have not traditionally been given much importance in Japanese male therapist’s relaxation services for men.

Jap Kasai JK

I provide vitality and relaxation to men through Japkasai (testicle massage).

Certified in Japan and Thailand

I have obtained qualifications in Thai massage and Japkasai (testicle massage) in both Japan and Thailand.

Male Sexual Function Care

Caring for Male Sexual Function with Karsai Nei Tsang (Evolved from Japkasai (Testicle Massage)), Prostate Massage, and Lingam (Penis) Massage Techniques.

Thai massage

I blend Thai Massage with Dynamic Thai Massage, Herbal Ball Massage, and Tok Sen Based on your Preferences.

The Liberating Experience of Nude Massage Therapy

Please relax while lying spread out during my mat-based treatment.

※The practitioner will be clothed during the treatment.

A Clean Room with a View of a Small Garden(By Appointment Only)

Little Services

-Fragrance-free soap and oil.
-Towels are ensured to be absorbent and clean through washing with sodium sesquicarbonate and drying with a gas dryer.
-Charging service available.
-Service to dry clothes in a dehumidifier during the treatment.
-No need for customer card registration.

Store Information

-My studio is located in Yotsuya, just 4 minutes by train from Shinjuku.

-“Business Hours (Blue Frame)

※ Courses that extend beyond 22:00 due to treatment duration (e.g., starting at 21:30 for 65 minutes) will be subject to a 1.5x surcharge as out-of-hours service.

About Me

Nice to meet you, I’m JK. I can only speak a little English, but I’ll manage somehow. For privacy reasons, I do not disclose my face. Choosing based on just this information is somewhat of a “bet,” isn’t it? I apologize. I strive to create an atmosphere where you can entrust both your mind and body to me so that you can enjoy the treatment in a relaxed state. I will do my best to make you feel like you’ve “won the bet.”

The reason I chose this line of work is because I wanted to do something that would be meaningful to others, bring them joy, and give me a sense of purpose and fulfillment.

I used to work as a company employee, but witnessing footage of people being swept away by the tsunami during the Great East Japan Earthquake left a profound impact on me. That experience led me to decide, “I want to live a life where I do what I truly want to do.” However, since I had been with the same company since graduating college and had no prior experience with changing jobs, the fear and anxiety of being unemployed during the transition from resigning to starting my own business is something I can never forget.

Even so, since opening my business, I’ve been blessed with customers who have chosen me, which in itself feels like a miracle and something I’m deeply grateful for. On top of that, some of those customers have even come back again, and thanks to their support, over ten years have passed before I knew it. With this deep sense of gratitude in my heart, I will continue to provide an honest, pleasant space and treatments for all my customers.

Please see this page for the certificates I have obtained.