Japan Research Service
Can't find it in English?
We search Japan for you.
We research Japanese-language websites and public sources, verify the findings, and deliver a clear English report with source links. For individuals and businesses — no Japanese required.
What we research
If it's on a Japanese website, we can look into it.
We handle a wide range of research requests. Here are common examples — but if your question isn't listed, just ask.
Japanese companies and their products
Prices, availability, and specifications
Customer reviews and reputation on Japanese sites
Competitors in the Japanese market
Local services and businesses
Government, municipal, and regulatory information
Industry reports and market data
News and announcements (in Japanese)
Historical or hard-to-find records
Other publicly available information in Japanese
Not sure if we can help? Send us your question — we'll let you know.
Why use optimal plan SEARCH
Research done right — in Japanese.
Research in Japanese
We search Japanese-language websites and sources directly — not just translated content.
Human verification
Every finding is checked by a human researcher. We do not pass along unverified AI output.
Source links included
Reports include the URLs and sources we used wherever possible, so you can verify the findings yourself.
Clear English reporting
Results are organized and written in plain English for easy understanding.
Custom research design
Each request is handled individually. We design the research approach for your specific question.
No long-term contract
Pay per request. No subscription, no retainer, no commitment required.
About
About optimal plan SEARCH
Background
Research at optimal plan SEARCH is handled by a search specialist with professional experience working in the search domain at Yahoo! JAPAN.
Rather than simply scanning search results from top to bottom, we design the search approach, cross-check multiple sources, and trace findings back to original or primary information whenever possible.
AI may assist the research process, but every finding is verified by a human researcher.
Why "optimal plan"?
The name optimal plan means choosing the best plan or approach for the goal at hand.
When information is difficult to find, the challenge is often not only finding the answer, but deciding how to search for it. We build the search approach around the question and work toward the best available answer.
How it works
Four steps, start to finish.
01
Tell us what you need
Send us your question using the contact form. No Japanese required — just describe what you're looking for in English.
02
We review and quote
We review your request and send back a scope and quote. No payment until you agree.
03
Secure payment via Stripe
Once you approve the quote, we send a payment link via Stripe. Research begins after payment is confirmed.
04
Receive your report in English
We deliver a clear English report with source links. We aim to deliver within 7 days of payment; the timeline for your request is stated in the quote.
Limitations
What we do not do.
We work strictly within legal and ethical boundaries. We only access publicly available information. We do not engage in any of the following:
- —Hacking or unauthorized access to any system
- —Acquisition of non-public or protected personal information
- —Impersonation or deceptive contact
- —Surveillance or monitoring of individuals
- —Any research that violates applicable laws or regulations
If a request falls outside what we can responsibly deliver, we will tell you clearly before any payment is made.
Our position on AI and sources
We may use AI tools to assist with tasks such as translation, organizing research notes, or generating draft summaries. However, AI-generated text is never treated as evidence or a source.
Every finding we deliver is verified by a human researcher against actual sources. Wherever possible, you receive the URLs and references we used — not just a text output.
Pricing
Every request is quoted individually.
Research scope and complexity vary widely — a simple product lookup is different from a full competitor analysis. We review your request first and provide a clear quote before any paid research begins.
There is no charge to ask. Payment is only required after you review and approve the scope and price.
FAQ
Frequently asked questions
Contact
Tell us what you're looking for.
Describe your question in English. We'll review it and get back to you with what we can do and how much it will cost — before anything is paid.
You don't need Japanese search terms or a finished brief. A rough description is enough to start, and we'll ask follow-up questions if needed.