Fixed-price research briefs on the Japanese market — competitors, pricing, regulations, channels — built from official Japanese-language sources and delivered async in 48–96 hours (business days). No calls. No meetings. Every fact linked to its source.
The button opens a pre-structured email. If it doesn't, just write to hello@ruribrief.com with your market, the decision you're making, and your deadline — scope and price come back in writing within one business day, usually within hours.
Productized, fixed-price, async. You send a written question; we send back evidence. Pay by card (Stripe) in USD, or by invoice in USD/JPY.
A focused scan of your market question — competitors, pricing, market size, entry considerations.
All tiers deliver desk facts and landscape — not entry recommendations. Need a Go/No-Go view or entry strategy? We'll refer you to a specialist partner firm.
Ongoing English summaries of Japanese news, competitor moves and regulatory changes in your sector — to your inbox or Slack.
Structured datasets built from public Japanese-language sources — company lists, pricing tables, market data.
Designed for founders and teams who want answers, not another meeting on the calendar. Async by default; an optional paid call is available if you need one.
Tell us what you need to know in a short email. We confirm scope, price and deadline in writing within one business day — usually within hours.
We go straight to Japanese-language primary sources: government data, industry press, company disclosures, price pages.
A structured PDF or Word document with a source table, plus raw data as CSV. Facts and estimates are always labeled.
Questions after delivery? Two rounds of written clarification are included in every brief.
Most of Japan's market reality never appears in English. We read the government statistics, company disclosures and trade press that never make it into English — and label primary, secondary and vendor-estimate sources for what they are.
Each fact links to its source. Estimates are labeled as estimates, with the reasoning shown. You can verify everything we write.
We use AI tooling openly to read more, faster — and a human verifies sources and signs off on every deliverable before it ships.
Scope and price agreed in writing before we start. If we can't answer your question, we say so before you pay.
Yes, openly. AI tooling lets us read and structure far more Japanese-language material than a human researcher could in the same time. Every deliverable is source-verified and reviewed by a human before delivery, and we never ship unedited AI output. If your platform or policy requires AI disclosure, we comply fully.
Yes. Your brief, our findings, and the fact that you asked are never resold, reused or referenced. We do not input your confidential materials into third-party AI tools without your explicit approval. A mutual NDA is available on request at no extra charge on Standard briefs and above.
Really. Scoping happens in writing — it's faster and leaves a record. If you'd like to talk, a paid 25-minute call ($60) — with a written summary sent afterward, so the record stays async — is available on Standard briefs and above.
By card (Stripe, USD) once you approve the quote, or by invoice with bank transfer in USD or JPY for teams that need one. Japanese qualified invoices (適格請求書) available.
When scope is confirmed in writing and payment is received. Turnaround is quoted in business days. If we're going to miss an agreed deadline, we tell you immediately and agree a remedy on the affected scope.
If public sources can't support a reliable answer, we deliver a "no reliable public answer" memo — what we searched, what we found, what remains unknown — and refund the undelivered portion of the agreed scope. We'd rather lose a fee than ship guesswork.
Two rounds of written clarification or revision are included. Additional rounds or scope changes are quoted separately before any work begins.
Ruri Brief is a brand of Blueshift Japan LLC (合同会社 Blueshift Japan), a research company in Shibuya, Tokyo. Every deliverable is source-verified and signed off by founder Tomoaki Nakao — 20 years in international business at Sumitomo Corporation. No anonymous outsourcing. Full corporate details are on our Legal & Company page and in every proposal, contract and invoice. "Ruri" (瑠璃) is the Japanese word for lapis lazuli — the deep blue of careful work.
Yes — we invoice in USD or JPY, and deliver in English, Japanese, or both. Japanese clients: see our Japanese page.
Send your question today. Scope and quote back in writing within one business day — usually within hours.
hello@ruribrief.com
Ruri Brief