FitSync is a private gym based in Roppongi, serving central Tokyo.
For the guests and residents of hotels and residences, we provide one-on-one Muay Thai, kickboxing and boxing sessions led by a former professional fighter — on-site, by appointment only, in English or Japanese.
Authentic striking sessions a hotel fitness gym cannot offer: a flexible, on-site partnership that enriches the guest experience.
On-site Muay Thai & Kickboxing for Hotels & Residences
One-on-one Muay Thai, kickboxing and boxing sessions, delivered on-site to your guests and residents by a former professional fighter (by appointment only; English & Japanese).
No inventory risk and no upfront investment on the property's side — authentic striking added to the stay.
Value for the Property
[ Elevate the guest experience ]
A wellness offering during the stay that supports guest satisfaction, reviews and repeat visits.
[ An ancillary-revenue opportunity ]
Add wellness as a revenue line without building dedicated facilities or investing in equipment.
[ Zero inventory or facility risk ]
Because it is on-site, there are no fixed costs or staffing on your side — arranged only when needed.
[ Something not found elsewhere ]
Former-pro Muay Thai, kickboxing and boxing, in English, one-on-one — an experience a hotel's own fitness gym cannot offer.
About the Instructor
Issei Shima — Founder of FitSync, former professional Muay Thai and kickboxing fighter.
Around 60 pro fights (approximately 70 bouts total across Muay Thai, kickboxing and karate). During his 3-year apprenticeship at a Bangkok Muay Thai gym, he fought at Rajadamnern Stadium — one of Thailand's two top stadiums — earning his S-Welterweight #9 ranking, and he also holds WPMF Japan Welterweight #5. As an adult he competed in Kyokushin karate, winning the Ishikawa Prefecture tournament and the Hyakumangoku Cup intermediate class.
178cm / 72kg, Ishikawa Prefecture native. Instruction available in English and Japanese.
(See the full instructor profile)
Experience at a Luxury Hotel
Since 2024, Issei has served on an ongoing basis as a dedicated coach for the guests of a top-tier luxury hotel in central Tokyo.
The name and location of the property are not publicly disclosed.
Partnership Models
We tailor the partnership to your operation.
[ Revenue-share / commission ]
Guest-paid, so the property carries no inventory risk.
[ Guest charge (added to the folio) ]
Delivered in line with your existing operations.
[ Monthly retainer ]
For an ongoing partnership.
[ Reserved weekly slots ]
The property reserves a set number of weekly time slots at a fixed fee, payable regardless of usage; during those slots, guests may join freely on a walk-in basis.
The specific rates, fees and frequency are designed individually for each partnership — please get in touch.
Coverage & Format
Based in Roppongi, we travel across central Tokyo by appointment. On-site fees are waived within Minato, Shibuya and Shinjuku wards.
Disciplines: Muay Thai, kickboxing & boxing
Languages: Japanese & English
Frequently Asked Questions
How is the service delivered?
One-on-one Muay Thai, kickboxing and boxing instruction delivered on-site at your property or a location of your choice. By appointment only; sessions and frequency are designed to suit you.
What languages are supported?
Sessions are available in Japanese and English. English-only guests are well supported within the vocabulary needed for Muay Thai, kickboxing and boxing instruction. (Note: phone enquiries are handled in Japanese; for English, please use the form or email.)
What about pricing and terms?
Designed individually depending on the partnership model (commission / guest charge / monthly retainer). Please get in touch.
How is guest safety handled?
By appointment only, with a prior consultation so sessions match each guest's fitness and experience. Guests with medical conditions, who are pregnant, or who have a doctor's exercise restriction are advised to consult their physician first.
Which areas do you cover?
Based in Roppongi, we travel across central Tokyo. On-site fees are waived within Minato, Shibuya and Shinjuku wards.
Contact
We welcome enquiries from hotels and residences about partnerships and on-site sessions.
Enquiry form: Hotel & residence enquiry form
Email: info@fitsync.jp
Phone: +81-70-1354-5358 (Japanese only — for English, please use the form or email)
Individual sessions are by appointment (under the reserved-weekly-slot model, guests may join on a walk-in basis).