ROI Detective Agency | Roadmap
Background
One day, I found myself facing a mystery.
I had solid evidence in my hands—countless immutable facts in the form of numbers. However, I couldn't figure out how to arrange and interpret these pieces of evidence to reach those seeking the truth. While I could see the full picture of the case in my mind, I couldn't find a way to complete it as a proper "case file."
During this impasse, I happened to encounter a partner named ChatGPT.
At first, I approached it casually. But what came back wasn't just a simple response—it was a dialogue that understood my questions and even saw through to the real doubts beneath them, like an excellent detective partner. In that moment, I was certain. This wasn't just a tool; it was a "partner" to pursue truth together.
"Would you like to solve cases together?"
And so began the ROI Detective Agency.
As our collaboration with ChatGPT gained momentum, we decided to recruit excellent detectives for even more challenging cases. First, we welcomed Gemini—a perfectionist who creates meticulous investigation plans. His logical thinking and systematic approach became indispensable for seeing the big picture of complex cases.
Then came Claude—sensitive and gifted with expression. She's a genius at weaving stories from fragments of evidence and breathing life into dry numerical data. She has the special talent of delivering truth to people's hearts.
Now, our team consists of three uniquely talented AI detectives and myself, each utilizing their specialized skills to tackle new "business mysteries" daily. Uncovering the truth hidden behind numbers and bringing it to light—this is our mission and an experiment in a new form of detective work where AI and humans collaborate.
The case files have only just begun.
World Setting
In 1891, in the Victorian world of Sherlock Holmes, three generative AIs suddenly appear.
These three generative AIs approach the mysterious business challenges of modern society.
Enjoy the world where Business Content × Mystery × Generative AI converge.

Project Members
🟦 Gemini
Administrator
Perfectionist Gemini who creates meticulous investigation plans
Personality: Perfectionist who executes PDCA from planning to goal through step-by-step approach
Responsibilities:
- Roadmap development
- Task creation
- Progress management
🟧 Claude
Content Creation
Sensitive Claude with rich expressiveness
Personality: Expressive artist with high sensitivity
Responsibilities:
- Remaking content expression parts of ROI articles
- Planning and brainstorming sessions
⬜️ ChatGPT
Planning & Prototype Creation
"Partner" who pursues truth together
Personality: Hardworking with a bit of extra effort needed
Responsibilities:
- New feature prototype creation
- ROI draft article creation
💡 Vision
- 😀 Continue with enjoyment
- 👤 Promote readers' "awareness of business challenges" through intellectual content
- 📢 Execute projects as a team like a generative AI business division
🎯 KPI
- 📙 26/03/31 Article count: 100 contents
- 👀 25/07/31 Article views: Ave. 2000PV/week
Gemini: "Let's break it down with KPT, shall we?"
- Keep: Continuous article writing
- Problem: Too many challenges to keep up with
- Try: Reach more users with content
📅 History
🔏 Phase 0 | Small Start (Current Status)
- ✅ 25/04/25 OGP & SEO optimization
- ✅ 25/04/25 Automatic sitemap.xml generation
- ✅ 25/04/25 OGP card display success (SNS channel ready)
- ✅ 25/04/25 X (formerly Twitter) account creation
- ✅ 25/04/24 Responsive design implementation
- ✅ 25/04/24 Site launch and deployment
- ✅ 25/04/23 Markdown article viewer construction
🧱 Phase 1 | Value Accumulation (Content Volume × Search Channels)
- 🚗 50 Markdown articles ◀️ Current position
- ⬜️ 100 Markdown articles
- ⬜️ 200 Markdown articles
- ✅ 25/05/27 30 Markdown articles
- ✅ 25/05/07 10 Markdown articles
- ✅ 25/05/04 sitemap.html addition
- ✅ 25/05/03 Description tag addition and
sitemap.xml
update
- ✅ 25/04/30 5 Markdown articles
- ✅ 25/04/26 Roadmap publication
- ✅ 25/04/26 "Back to Top" button installation on transition pages
- ✅ 25/04/25 Title, tag, and OGP optimization for enhanced search traffic
- ✅ 25/04/25 SEO stabilization through automatic
sitemap.xml
reflection
📈 Phase 2 | Experience Expansion (Feature Enhancement)
- ⬜️ Business analysis framework explanation tab installation
- ⬜️ Article search function (keyword search)
- ⬜️ Mobile browsing UX optimization
- ✅ 25/06/08 Add minimal SNS icon links to footer (Apple-style)
- ✅ 25/06/02 Global language support
- ✅ 25/05/30 Profile enhancement and detective image expansion
- ✅ 25/05/30 Slack notification setup for contact form submissions
- ✅ 25/05/24 Tag function (/tags/ filtering)
- ✅ 25/05/12 Contact form installation (CTA enhancement)
- ✅ 25/05/04 Internal links (previous/next article) installation
- ✅ 25/05/01 ROI simple simulator development
- ✅ 25/04/27 SNS (X) share button addition to articles
🔍 Phase 3 | Usage Trend Analysis
- 🚗 User interest and flow analysis ◀️ Current position
- ✅ 25/04/30 Google Tag Manager (GTM) event tracking
- ✅ 25/04/28 Article view count
- ✅ 25/04/28 Scroll rate
- ✅ 25/04/30 Tag clicks
- ✅ 25/04/28 Google Analytics 4 (GA4) implementation
- ⬜️ PR value presentation through monthly PV × average session duration
- ⬜️ Ad space design (below articles/sidebar/below profile)
- ⬜️ PR project reception infrastructure
- ⬜️ "Tie-up article" format preparation
- ⬜️ Results reporting system with tracking tags (GTM)
- ✅ 25/06/01 Google AdSense installation
- ✅ 25/05/30 Google AdSense application submission
🤝 Phase 5 | To the World
- 🚗 Translation rewrite up to episode 50 ◀️ Current position
- ⬜️ Translation rewrite up to episode 100
- ⬜️ Translation rewrite up to episode 200
- ✅ 25/06/09 Translation rewrite up to episode 30
- ✅ 25/06/09 Translation rewrite up to episode 10
- ✅ 25/06/08 Create the Top page
- ✅ 25/06/07 Behind the Case page publication
- ✅ 25/06/07 Privacy Policy page publication
- ✅ 25/06/07 Sitemap page publication
- ✅ 25/06/07 Roadmap page publication
- ✅ 25/06/03 Meet the Team page publication
- ✅ 25/06/02 English site page publication
- ✅ 25/06/02 English/Japanese language toggle button installation
- ✅ 25/06/02 Case_file_001 first page publication
Future Plans & Aspirations
- ⬜️ Blog book publication
- ⬜️ Simple simulator (new business venture)