AI × MARKETING × PRODUCTION
NEXT VALLEY is a small web team in northern Saitama that has helped 100+ businesses since 2021. We find out why inquiries aren't coming in, then do only what's needed — websites, SEO, Google Maps, social media, and AI are the tools, not the goal.
Just send your URL and you'll get a written check-up — what's broken and what to fix first — within 2 business days.
Building a new site? See a free preview of your design first.
Both are completely free. No pushy sales calls, ever.
PROBLEM
Neither your marketing nor your workload will fix itself while you're just winging it.
Do any of these ring a bell?
01
Website, social media, ads — you're doing a bit of everything, but none of it is really turning into inquiries.
02
The site you built ten years ago is still up, untouched. The face of your business is quietly costing you customers every day.
03
You'd love to use AI to save time, but you don't know where to start — and the daily grind leaves no room to figure it out.
04
You can't tell which efforts are paying off, so it's hard to get your team on board — or to justify next year's budget.
It's not your fault.
The people who build your website and the people who bring in customers are usually two different companies.
What we do
AI at the core, from marketing to production.
We won't try to sell you everything. We recommend only the moves your business actually needs.
AI CONSULTING
WEB PRODUCTION
SEO / MEO
SNS MARKETING
DESIGN
OPERATION SUPPORT
Why NEXT VALLEY
01
REASON
The people who plan your marketing are the same people who build and run it.
Nothing gets done in isolation — every move connects to a plan that leads to revenue.
02
REASON
We use AI daily in our own production and marketing, cutting builds that used to take a month down to as little as 3–5 days.
We hand you those same working methods — practical support, not theory.
03
REASON
Every month you get a report on traffic, inquiries, and other results.
No “it feels like things are better” — you can always judge by the numbers.
Not sure we're the right fit? See our proposal first, then decide.
Start with a free site checkOur work
Over 100 businesses served, from real estate and construction to e-commerce, fitness, online media, and schools.
Education & Schools
Education & Schools
Education & Schools
They built two things for us: the school's main website and a separate page for our Eiken prep course. The two reach different audiences, so their suggestion to keep them apart was very welcome. The inquiries we receive are now much more specific, which makes them easier to answer.
Barbershop
Matsumi
Media & Information Site
BowlingNavi
Real Estate
KyuWa Estate Co., Ltd.
Real Estate & Construction
Nishitsuji Construction Co., Ltd.
Real Estate Services
Eastern Hawk
Corporate Website
I-SECOND Co., Ltd.
E-commerce
I-SECOND STORE
Fitness
Personal Gym Me
Cemetery
Kurotori Bochi
Media
Chiang Mai Info Station (Northern Thailand)
Corporate Website
Vivid Direction Co., Ltd.
Corporate Website
Wannabe Co., Ltd.
Education & Schools
ECC Junior Ichiriyama
Education & Schools
Colours Musical Studio
Education & Schools
Maya Children's House
Education & Schools (Landing Page)
Yuma English House: Eiken Prep Course
Education & Schools
DANCE STUDIO PLUS
Education & Schools
K-coaching
To protect our clients' privacy, only a selection of our work is shown here.
Pricing
The proposal and quote are free. See exactly what you get and what it costs before you decide.
Need just a website or landing page? Single services are welcome too.
Start here
A single-page site with a trial-lesson form, built with AI and live in as little as 3–5 days. After launch, a monthly report and improvements keep the inquiries coming.
Real example: an English school saw 19 LINE inquiries and 14 new students in Jan–Jul 2026 (from the client's monthly reports).
Tax incl. Build-only is fine too.
See a free preview of your designWant a full multi-page site handled end to end?
ALL-IN-ONE
A multi-page website and marketing, together. Keeping both in one team is what moves the numbers.
The monthly fee covers your traffic and inquiry report every month, plus the improvements we make based on it. We don't build and walk away.
Setup ¥165,000+
+ Monthly ¥44,000+
All prices include tax
What’s included
Single services
| Service | Billing | Starting at (tax incl.) |
|---|---|---|
| One-page site | One-time | from ¥55,000 |
| Website (multi-page) | One-time | from ¥165,000 |
| Growth support | Monthly | from ¥22,000/mo |
| Social media marketing | Monthly | from ¥44,000/mo |
| Design (logos, flyers, etc.) | Project | Ask us |
| AI consulting | Project / Monthly | Ask us |
| Website management tool “SiteChat” | SaaS | Ask us |
Final pricing depends on scope and is confirmed in your free quote. If anything would cost extra, we always tell you before it happens.
How it works
STEP
01
Message us on LINE or by email. Sending the URL of your current site is enough to get started.
STEP
02
We review your website, search visibility, Google Maps, social media, and inquiry flow — and send you a written report: what's wrong, why, and what to fix first. Free of charge.
STEP
03
From web production, SEO, Google Maps, social media, and AI, we propose only what addresses the causes we found. If something is easy to fix yourself, we'll show you how.
STEP
04
Improvement isn't a one-off. We track traffic and inquiries in a monthly report and keep making the next move together.
From the founder
Hi, I’m Shun Kurahayashi, founder of NEXT VALLEY.
Born and raised in Honjo, Saitama. I taught myself programming in 2020, gained hands-on experience at a web production company, and founded NEXT VALLEY in 2021. Since then I’ve helped more than 100 businesses with their websites and marketing.
“It’s probably expensive.” “Will it actually work?” In our experience, those two doubts are what keep most people from reaching out.
So we show you the real thing first. We take a close look at where your business stands, then put together concrete recommendations and a quote — free of charge. If it’s not for you, just say no.
No pressure, no hard sell. Judge us on the substance of the proposal.
Founder, NEXT VALLEY Shun Kurahayashi
Common questions
Contact
FREE CHECK & PROPOSAL
Just send us your website URL or a quick note on LINE. We’ll reply with concrete improvements and a ballpark quote.
Read the proposal first — then decide whether to hire us.
Still on the fence? → 3-minute site check
— If it’s not for you, just say no —
