Services are grouped into four purposes: build, AI search & content foundation, consulting & marketing, and training. You don’t need the full set.
If requirements are still fuzzy, we start from who uses the system daily and what breaks. Same team from design through ops, so intent is less likely to erode mid-project.
All Services
Build
Build
Business systems, web, and generative AI — right-sized
AI Search & Content
AI Search & Content
Content structure people can update — and AI search can cite
Consulting & Marketing
Consulting & Marketing
Problem framing, ISMS, audits — plus ads & SEO
Training
Training
Training for AI-assisted build. Up to 75% off with subsidies
FREE AI SEARCH DIAGNOSIS
Is your site cited by ChatGPT and Perplexity? Check it free
Enter a URL and get SEO / AIO / LLMO scored out of 100. The SEO score shows instantly — no signup.
analyzer.pref.co.jp · Opens in a new tab
Why work with us
We use it too
We operate café, real estate, EC, and products. Operator friction sharpens proposals.
Ops over abstract DX
We don’t pitch workflows we wouldn’t run. Scope starts from what still moves tomorrow.
Short decision path
Same team owns design through ops. ISMS (ISO 27001) for how data is handled.
Development Process
Hearing
Thorough hearing of challenges and requirements
Requirements & Design
Organize functional requirements and design systems
Development
Agile development with phased implementation
Testing & QA
Various testing to ensure quality
Release & Operations
Production deployment and ongoing operations
Our Own Businesses
We also run IT, F&B, and real estate ourselves. What breaks in our ops feeds how we scope client work.
F&B / Kamakura
Slow Rush Coffee
A specialty roasting café in Kamakura. We improve store ops ourselves.
E-Commerce / Collaboration
LC COFFEE
An e-commerce collaboration with Luxury Card. End-to-end operations from payment to logistics.
Real Estate / Shinjuku
Preferred Estate
Rental and sales brokerage centered in Shinjuku, Tokyo. Also providing system development and consulting for real estate businesses.
Technologies
Frontend
Backend
Infrastructure
Database
AI/ML
You can talk to us before requirements are finished.
We can start by sorting what to do first. We run businesses ourselves, so the conversation stays about labor and ops. Consultation and estimates are free.
Online meetings / reply by next business day / free consult & estimate