Your Dual-Qualified Partner
for Japan Business Entry
Since 16 October 2025, a new Business Manager Visa requires a business plan confirmed by an SME Management Consultant, certified public accountant or certified tax accountant. As both a licensed Administrative Scrivener and certified SME Management Consultant, I handle the legal paperwork and the business strategy in one place.
2
National Qualifications
University of Tokyo
Osaka-based, available worldwide

Ryoya Tosaka
Principal Consultant
Why Dual Qualification Matters
Japan's 2025 reforms require your visa application to include a business plan confirmed by a qualified expert, while the application documents are the work of a licensed scrivener. Here, one office holds both qualifications, so the plan and the paperwork are built together.
Before: Two Professionals
- Hire a scrivener for visa paperwork
- Hire a separate consultant for business plan
- Coordinate between them, manage misalignment
- Higher total cost, longer timeline
With Tosaka Office
- One professional handles everything
- Legal documents and business plan are aligned from day one
- Single point of contact, faster decisions
- Competitive pricing with no coordination overhead
Services
Comprehensive support for foreign entrepreneurs entering or expanding in Japan.
Business Manager Visa
Navigate the October 2025 reforms with confidence. New capital requirements, mandatory business plan evaluation, and stricter eligibility — we handle every step.
Learn more →
02Startup Visa
Japan's nationwide startup visa program offers up to 2 years to build your business before transitioning to a Business Manager Visa.
Learn more →
03Business Plan Evaluation
Now mandatory for all Business Manager Visa applications. Our dual qualification means your plan meets both legal and business standards.
View pricing →
Qualifications
Administrative Scrivener
行政書士 (Gyoseishoshi)
A nationally licensed legal professional authorized to prepare and submit official documents to government agencies on behalf of clients. This includes visa applications, company incorporation filings, and all administrative permits required to do business in Japan.
SME Management Consultant
中小企業診断士 (Chusho Kigyo Shindan-shi)
Japan's only nationally certified business consulting qualification. Covers financial analysis, strategic planning, operations management, and marketing. It is one of the three Japanese qualifications the Immigration Services Agency accepts for confirming a Business Manager Visa business plan (with certified public accountant and certified tax accountant).
Book a Free 30-Minute Consultation
Share your situation and I will outline the best path forward — whether you are applying for a new visa, adapting to the 2025 reforms, or exploring the Startup Visa program.
info@tosaka-office.jp · Response within 24 hours
Not in Japan yet
Before the visa, there is the question of whether to come at all
We also publish Actually Japan — what the Japanese government's own survey of 7,867 international students says about the cost of living, the part-time work, the housing, and the paperwork that comes after graduation. Ten findings, each one linked back to the document it came from.
It recommends no school and takes no commission from any of them. It exists because the honest figures are difficult to find in English.
actuallyjapan.com