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CASE STUDY
Nennai Nyushi Navi, a Matching Service for Comprehensive Selection and Recommendation Admissions: AI Feature Development and Ongoing Co-Creation

Overview
Nennai Nyushi Navi is a matching service that connects universities with high school students aiming for comprehensive selection or school recommendation admissions. Its distinctive feature is that universities can search for students and send them scout offers.
As a co-creation partner of Avalon Consulting Inc., we handled development and release from the concept stage onward. Since release, the same team has continued to develop and improve the service.
Service website: Nennai Nyushi Navi
Challenges
- There was no single place to search for information on comprehensive selection and recommendation admissions
- Universities had no way to approach students who were a good fit for them directly
- Students had few opportunities to get objective feedback on documents such as statements of purpose
What We Did
- Developed three service interfaces, for high school students, universities, and administrators, along with a shared platform
- A scout feature that lets universities reach out to students, plus real-time chat
- An iOS app that lets students receive scout offers and chat messages on their phones
- Features using generative AI, added step by step after release (see below)
Results
- Users grew 11-fold year over year (as announced by the operating company)
- Registered high school teachers increased about 4.7-fold in one year (as announced by the operating company)
- AI now supports labor-intensive work such as preparing university information, grading documents, and writing scout messages
AI Features Implemented
| Feature | Used by | What it does |
|---|---|---|
| Automatic generation of university information | Universities, administrators | Drafts page content on faculties, admissions, tuition, and more from the university's official website |
| Statement of purpose grading | High school students | Returns scores for each criterion along with comments. Does not rewrite the text |
| Essay grading | High school students | Grades out of 100 and returns strengths and points to improve |
| Handwritten answer recognition | High school students | Converts handwritten essays from images into text |
| Scout message drafting | Universities | Suggests wording tailored to each student's profile |
| AI assistant | Universities | Lets staff search for students just by asking, for example "students with study-abroad experience," and go all the way to sending a scout offer |
We also built operational mechanisms so the AI can be used with confidence over the long term.
- Record the cost of each use, and route simple tasks to lower-cost models to keep costs down
- Limit which sites the AI may reference, so it does not make things up when no information is available
- Do not leave total scores to the AI; recalculate them in code
Student App
We also developed an app that lets students receive scout offers from universities on their phones and continue the conversation with the university by chat.

Co-Creation That Continues After Release
We have kept improving the service since release, expanding its features in line with user feedback and business growth: scout offers, chat, the student app, landing pages, campaigns, email delivery of recommended universities, and LINE login.
Our role as a co-creation partner is not to build something and walk away, but to keep working alongside the business as it grows.
Our Scope of Work
- Planning and requirements definition
- Design, development, and testing
- Post-release feature development and operations
Client Information
Company Name
Avalon Consulting Inc.
Business Overview
- Operation of Nennai Nyushi Navi, an admissions support service specializing in comprehensive selection and recommendation admissions
Product Information
Name
Service Overview
An admissions support service where students can search and compare universities that offer comprehensive selection and school recommendation admissions, and receive scout offers from universities. AI grading of statements of purpose and essays also helps students prepare their applications.
Frequently Asked Questions
Can AI features be added to an existing service later? Yes. In this case too, we added AI features one at a time after release while watching how the service was being used.
We are worried that AI usage fees will balloon. In this case, we keep costs down by recording the cost of each use and choosing models according to how difficult each task is.
Can we keep commissioning development after release? Yes. In this case too, the same team has continued to develop and improve the service since release.
Related Information
- Launching a new business or matching service → PoC/MVP Development
- Developing services with AI built in → AI Implementation Support
- Developing web services and business systems → System Development
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