SEO Keyword Research for Just 9 Yen a Day. Industry's Lowest Priced Tool "Saguru" Supports Web Marketing for Individuals and SMEs

Rewriting the Rules of SEO with Plans Starting at 270 Yen Per Month

Breaking the Norms of SEO

Individuals and small to medium-sized businesses (SMEs) who couldn't afford expensive tools can now start data-driven web marketing.

Create data-driven articles from 270 yen per month, with no risk of loss.

D-SYSTEMS-EN Inc. (Headquarters: Shinjuku-ku, Tokyo; President and CEO: Yugo Saito; hereinafter "the Company") is pleased to announce the launch of "Saguru" (https://saguru.dsystemsen.com/), an SEO keyword research tool available from 270 yen per month (tax included), starting June 1, 2026.

Full-fledged SEO tools typically cost several thousand to tens of thousands of yen per month, making them prohibitively expensive for individual bloggers and SMEs, who "want to introduce them but cannot."

Saguru overturns this norm. For 270 yen per month—less than the cost of a single can of coffee, or about 9 yen per day—you get virtually unlimited searches (※1). Simply enter one keyword to instantly retrieve suggestions from 11 sources including Google, YouTube, and Amazon, co-occurring terms, raw user concerns from Q&A sites, and even competitor ad keywords, all on a single screen.

Furthermore, you can try it for free up to 5 times a day without registration or credit card information. There is no initial cost, and cancellation is a one-click process. "Try it free first, then start full operation for 270 yen."

We are making SEO measures, which can be started with zero risk, accessible to all individuals and SMEs.

※1 The Basic Plan allows up to 100,000 searches per day. This is effectively unlimited for normal article creation and ad operations.

●●● Creator's Voice ●●●

Hello, I am the CEO of an SME entering its third year, operating web services. I have experience receiving sales pitches for SEO, AI, LLM, etc., and was shocked by the cost and quality.

Paying hundreds of thousands of yen just to post 10 column articles... paying hundreds of thousands of yen for a website anyone could create... I truly experienced how people who don't know get taken advantage of in this industry.

※ Paying a high price does not guarantee results; it's a myth. Many find that price does not equal results.

So, as an IT engineer, I created the SEO tool "Saguru" myself.

※ Considering the API usage fees we bear, the features of the Premium Plan are a bargain at 580 yen, I believe.

However, just because it's cheap doesn't mean it's lacking in quality. I believe we have created an application with sufficient performance for individuals and SMEs, yet affordable and accessible.

We invite you to experience the difference between "Saguru" and expensive SEO tools.

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Background of Development: SEO Professionals' Worries Boil Down to "Scattered Information, Time, and Cost"

Expensive Tools That Take Time for Research

Keyword research, which is crucial for the success of web marketing, has long faced three major hurdles.

Full-fledged SEO tools typically cost several thousand to tens of thousands of yen per month. This is a heavy burden for individual bloggers and small teams, posing problems of time and cost.

Why did we insist on a monthly fee of 270 yen?

It's because I experienced the reality that "everyone actually wants to use data for web marketing, but cannot." Articles written aiming for high search rankings are read by no one.

The reason is not the writing skill, but the "keyword selection" before writing that determines the outcome. Many site operators realize this fact but stop short due to the high cost of tools.

Efforts are wasted on articles that could have been avoided with proper research. We believe this structure is the biggest missed opportunity in web marketing. At its root are the three walls that SEO professionals have long faced.

1. Scattered Tools Are Troublesome

Retrieving suggestions, checking Q&A sites, analyzing co-occurring terms, researching competitors—you need to switch between different tools, and just switching tabs is a hassle.

2. Research Takes Time

Simply retrieving suggestions one by one in alphabetical order and organizing related keywords can consume the time needed for writing a single article.

3. Existing Tools Are Expensive

Full-fledged SEO tools typically cost several thousand to tens of thousands of yen per month. This is a heavy burden for individual bloggers and small teams, forcing them to continue writing based on "intuition and experience."

To break down these three walls simultaneously, we developed "Saguru," a keyword research tool that consolidates necessary data onto a single screen and sets the price at the industry's lowest, 270 yen per month.

At approximately 1/10th to 1/100th the price of competing tools (※2), it supports article creation that "doesn't waste time and money on articles that won't rank."

※2 Competing SEO tools typically cost several thousand to tens of thousands of yen per month. As of June 2026, based on our own research.

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"Saguru": With Just One Keyword, You Can Instantly See "Winning Keywords" Marked with a 👑!

One-Click Search for Winning Keywords

Get Suggestions from 11 Sources, Headings of Top-Ranking Sites, Co-occurring Terms, and Competitor Ad Keywords All at Once

Saguru is a tool that consolidates SEO research data onto a single screen with just one keyword input.

Its biggest feature is that "you can tell if you can win before you write."

Saguru automatically assigns an SEO difficulty score (0-100) to each keyword, and a 👑 mark is displayed for "winning keywords" that are easy to rank for due to low competition.

This automates the "assessment" that previously required experienced SEO professionals to spend a lot of time on.

For example, by simply typing "cooking," over 1,000 related keywords are listed in order of low difficulty (most promising first). Long-tail keywords like "cooking arrangement recipe," which are searched for but have little competition, are displayed along with estimated daily PV, importance, search intent, and trend direction.

This crucial decision of "which keyword can I win with" before writing an article can be completed in minutes.

● 9 Things You Can Do for 270 Yen Per Month (Basic Plan)

Bulk Acquisition of Suggestions from 11 Sources: Automatically discover over 600 long-tail keywords from 11 sources including Google, Bing, YouTube, Amazon, Rakuten, X, and TikTok.

Automatic SEO Difficulty Assessment + 👑 Promising Keyword Display: Displays estimated daily PV alongside, allowing for quick prioritization.

Extraction of Q&A Site Questions: Automatically collects user concerns from Yahoo! Chiebukuro.

Automatic Extraction of Co-occurring Terms: Displays up to 200 frequently occurring related terms from top-ranking pages.

Keyword Map: Visualizes co-occurring terms in a bubble chart.

Trend Graph: Displays trends over 12 months and peak dates, making seasonality clear.

Competitor Ad Keyword Research: Retrieves competitor's paid search keywords and ad copy by simply entering the domain.

AI Search Optimization (AIO/LLMO) Support: Diagnoses, improves, and compares against competitors for citation in AI search and generative AI.

CSV/Excel Output: Unlimited output of all data, with no additional charges.

From keyword research to SEO, AIO, LLMO, ad analysis, and competitor analysis, everything can be completed on one screen in 9 steps, eliminating the need to use multiple tools.

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Pricing Plans: Start Small from Free to Basic at 270 Yen to Premium at 580 Yen

Plan

Monthly Fee

Main Features

Free

0 Yen

5 searches per day without registration / 30 searches per day with email registration. Can check promising keywords (👑).

Basic

270 Yen

Virtually unlimited searches (100,000 per day). Supports Q&A, co-occurring terms, trends, keyword maps, and CSV output.

Premium

580 Yen

All Basic features + actual monthly search volume, CPC, competitor analysis, top-ranking site heading extraction, article structure suggestions, and AI features (title design, chat, etc.).

Initial Cost: 0 Yen

Free Trial: Use immediately without credit card registration or sign-up.

Cancellation: Complete with a single click at any time.

●● Even the Highest Tier Premium Plan is Only 580 Yen Per Month ●●

With the cost of a typical SEO tool for one month, you can use Saguru for several years. We offer an experimental option for all site operators with the mindset of "creating sales from a 270 yen data investment" rather than "buying a tool after sales are made."

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How Saguru Transforms the "First Hour" of Article Creation

Ultimately, you don't know the promising keywords...

All tedious keyword selection is automated, leaving you only to choose the promising ones.

No need to select keywords from various metrics after getting related keywords with free tools.

Previously:

Get related terms with a suggestion tool → Search Q&A sites for concerns → Extract co-occurring terms with another tool → Manually transfer to a spreadsheet... Keyword research alone takes 1-2 hours.

Moreover, you wouldn't know "if you can win with this keyword" until you wrote and published it.

With Saguru:

Simply enter one keyword. Suggestions, Q&A, co-occurring terms, and trends are automatically displayed, and the 👑 mark shows you the "winning keywords." The time saved can be used for writing, increasing both the number and quality of articles. The research results can be directly used as instructions via CSV, streamlining collaboration with freelance writers.

In other words, introducing Saguru doesn't just change the number of tools or the work time.

It ends the daily anxiety of starting to write with "Is there any point in writing this article?"

Many of you can probably relate. Articles written after hours of effort sink to the bottom of search results, making you dread opening the access analytics. You might start thinking, "Maybe I don't have the talent," and even begin to dislike writing itself.

But the reason for that poor performance isn't your writing skill. You were unknowingly choosing keywords you couldn't win with. With Saguru, the 👑 mark will give you the confidence to start writing, assuring you "this one can win." You can also check competitor movements and AI search readiness on the screen.

All you need to do is focus solely on writing. Shift from a daily routine of producing "articles that might hit or miss" to a routine of building "articles that you know will hit," one by one. This difference in certainty will manifest as a difference in access numbers and revenue after three months and six months.

The admission fee for that change is 270 yen per month.

Your "first hour" can now be used for results, not for anxiety.

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Recommended for: How 270 Yen Can Change Your "Last Mile"

No more worrying about free usage limits.

We will change the worldview of those tired of expensive SEO, AIO, and LLMO tools.

In this era, SEO measures themselves are in transition. Amidst this, we are releasing a tool with an innovative pricing structure.

● For Individual Bloggers and Affiliates: Graduate from the "Limitations of Free Tools"

Every time you hit the usage limit of free tools, you interrupt your research and have to continue from the next day.

Are you stuck in a cycle of writing articles with keywords chosen by intuition, only to be buried by stronger sites and end up off the rankings? With Saguru, searches are virtually unlimited for the monthly cost of a can of coffee.

Moreover, the 👑 mark shows you "weak keywords that individuals can win with," significantly increasing the probability that your articles will be read. Even for blogs before they generate revenue, 270 yen per month can be considered an "amulet" rather than an "expense."

● For Those Operating Web Media as a Side Hust Cuse Your Limited Time for "Writing"

For side hustlers whose battle is fought in the 2-3 hours after their main job, the biggest enemy is the time spent on research.

Saguru automatically provides suggestions, reader concerns, co-occurring terms, and trends with just one keyword input, significantly reducing research time and allowing you to dedicate the saved time to writing.

You can transition to data-driven article creation from the first month without worrying about the risk of losing money on tool costs.

● For SME Web Managers: Achieve In-House SEO with a "Price That Doesn't Require Approval"

SEO outsourcing costs tens of thousands to hundreds of thousands of yen per month, and high-functionality tools also cost tens of thousands of yen per month.

Saguru is ideal for managers who have given up before even consulting their superiors.

At 270 yen per month, you can try it yourself, achieve small results, and then negotiate for a budget with that track record, without needing approval. Since research data can be outputted as CSV/Excel, it streamlines everything from reporting to superiors to instructing production companies. You can become a manager who can speak with data about "what to spend money on."

● For Web Production and Writing Contractors: Lower Costs and Improve Proposal Quality

It's impossible to profit if you subscribe to expensive tools for each client.

With Saguru, even the Premium plan at 580 yen per month provides proposal materials ranging from keyword selection to competitor ad spending analysis and AI search (AIO/LLMO) diagnostics. Proposals with primary data like "Competitors are investing ad costs in these keywords" increase both order rates and unit prices. Regardless of your position, the common issue is "wanting to use data for SEO but being unable to due to cost." Saguru eliminates that reason.

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Future Development: A Tool That Continues to Evolve While Staying at 270 Yen Per Month

A Tool That Grows With You

Saguru will continue to grow by incorporating your feedback.

We are sequentially considering adding features suitable for the times, so please send us your opinions.

Saguru is not a tool that is "released and finished."

Our goal is to continuously update the tool monthly based on user feedback, increasing its value with every use, all for 270 yen. Saguru's fundamental policy, achievable because we develop and operate it in-house after over 20 years in system development, is to maintain the promise of being the "industry's lowest priced" while enhancing the value of our plans through feature expansion.

The direction of future feature expansion is from "researching" to "continuously winning."

We plan to expand features to support the PDCA cycle after article publication, such as tracking search rankings after publication and suggesting rewrite priorities. We aim to evolve into a tool that not only tells you "if you can win before you write" but also "what to fix after writing to win."

We will continuously update the AIO/LLMO diagnostic logic in line with changes in search engine and AI specifications.

This will protect users from the most feared scenario for SEO professionals: "My tool became outdated."

User voices directly reflected in the development roadmap: Feature additions will be prioritized based on incoming requests. We aim to be a supporting tool for a development system where "one vote from an individual blogger" and "one vote from an SME on the ground" are directly reflected in the product, reaching beyond the scope of large-scale tools.

Service Overview

Do SEO with the cost of coffee

Saguru: The Tool That Shows You Winning Keywords for 270 Yen

Simply enter one keyword to automatically retrieve suggestions and co-occurring terms from 11 sources. It displays "winning" promising keywords based on SEO difficulty with a 👑 mark, allowing you to know the possibility of ranking high before writing. Starting from 270 yen per month.

Service Name: Saguru

Launch Date: June 1, 2026

Pricing: Free (0 Yen) / Basic (270 Yen/month, tax included) / Premium (580 Yen/month, tax included)

Service Format: Web Browser (can start using without registration)

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Finally: The Time You Hesitate is the Most Expensive

In the month you hesitate, competitors will be 30 articles ahead.

SEO is a game where those who start early and accumulate data win. With Saguru, you can start your investigation for free from this very moment without registration or credit card information. Even for full operation at 270 yen per month, it's within reach if you can forgo one can of coffee.

If you've read this far, you've likely searched for "SEO tool, should I get one?" at least once. Then you looked at the pricing table and quietly closed the tab. Saguru was made for you, at that moment.

Consider this: if you write an article today using a keyword chosen by "intuition," those hours might be wasted on an article that won't rank. Meanwhile, your competitors are writing after identifying promising keywords with data.

This gap widens with each article you write. The most expensive thing in SEO is not the tool cost. It's the time spent writing without data. Still "hesitating"? Saguru is designed to eliminate your reasons for hesitation, one by one.

● "I'm worried I won't be able to use it" → You don't even need to register.

Open the site right now and enter one keyword. You won't be prompted for credit card information or a tedious membership registration form. You can see real research results completely free up to 5 times a day.

● "I don't want to lose money even on 270 yen" → You don't even need to give up one can of coffee.

About 9 yen per day. For less than the cost of your labor for a few minutes reading this article, you can perform up to 100,000 searches per day. Furthermore, cancellation is a one-click process anytime. At this price, you can "cancel next month if it doesn't suit you" without guilt.

● "It's okay if it's not now" → In that month, your competitors will have accumulated data for 30 articles.

SEO is a game where early starters win with compound interest. And as mentioned earlier, Saguru will continue to add features. The earlier you start, the greater the value you receive for the same 270 yen.

First, try researching one keyword for your site with the registration-free version. The moment "winning keywords" marked with a 👑 appear on your screen, you'll feel a premonition that your article creation will change. Whether that premonition is worth 270 yen is something you should confirm with your own eyes, as if you were buying a can of coffee.

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Company Profile

D-SYSTEMS-EN Inc. is an IT company with over 20 years of SI business experience, engaged in four business areas: contract system development, SES/freelance business, system development/operation business, and healthcare business. Leveraging our expertise in system development and human resource utilization, we provide "accessible IT" to both companies and individuals.

As explained at the beginning, based on our real-world experience, we have equipped Saguru with all the functions of expensive SEO tools. We are confident that you will feel the difference compared to traditional SEO tools, especially with the Premium Plan which allows for the listing of selected keywords. Please try it out.

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Company Name: D-SYSTEMS-EN Inc.

Location: 3-3-13 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Nishi-Shinjuku Mizuma Building 6F

Representative: Yugo Saito, President and CEO

Established: April 5, 2024

Business Activities: SI Business, SES/Freelance Business, System Development/Operation Business, Healthcare Business

URL: https://www.dsystemsen.com/

Inquiries Regarding This Matter

D-SYSTEMS-EN Inc. [System Development Department, Yugo Saito]

E-mail: Inquiry Form: url:https://www.dsystemsen.com/contact/

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