Add-ons
Add logins, uploads, and more as options
Forms, booking, logins, and uploads include both the designed interface and the processing and normal-operation allowance needed to make them work.
All prices include tax and apply per item — add only what you need. The site itself (JPY 11,000; the first one is free when published on a free subdomain) already includes up to 5 pages in the same look.
| Option | Price (incl. tax) |
| More pages |
| Internal links in the same design Extra pages that look like the top page — about, menu, access, and so on. The first 5 are included at no charge. Beyond that, the price applies to each additional group of up to 5 pages. | JPY 11,000 per additional 5 pages or fewer |
| A page with a different design A page with its own look and feel, different from the top page. Treated the same as building one more site. | JPY 11,000 per page |
| A second-language page A Japanese or English version of an existing page, in the same look, for readers in the other language. | JPY 5,500 per page |
| Map, social links, or video on the page Google Maps, buttons for Instagram, X, and LINE, YouTube videos, and similar, shown inside the page. | JPY 2,750 per item |
| Hearing from your customers |
| Contact form (visitors can message you from the page) Visitors write their name and request on the page and send it. It lands in your email, the sender gets an automatic confirmation, and spam is blocked. Normal operation is included, with no usage bill from Mumu Labo after launch. | JPY 12,100 per form |
| Booking or sign-up form (with dates, times, or courses to choose) A longer form for booking requests and applications, with an automatic confirmation to the sender. Normal operation is included, with no usage bill from Mumu Labo after launch. Live availability and instant confirmation are separate features. | JPY 17,600 per form |
| Members-only pages and updating it yourself |
| Locked page (only people who enter the passcode can see it) Opening the page shows a passcode box, and only people who enter the right passcode can see what is inside. There is one passcode, which you share only with the people you want to let in — for example, printed on wedding invitations for the photo page, or given to members for a members-only price list. Unlike the login option below, everyone uses the same passcode, so nobody has to register or get their own ID. | JPY 11,000 per site |
| Login (each member gets their own ID and password) Members sign in with their own ID and password and can reset a forgotten password themselves. Normal operation is included, with no usage bill from Mumu Labo after launch. Roles and an administration dashboard are separate features. | JPY 34,100 per site |
| SSO / social login (sign in with a Google or LINE account) Lets members sign in with the Google, LINE, or Apple account they already use, instead of creating a new ID and password. ※ Added on top of the login option | JPY 16,500 per site |
| Photo uploads (add photos yourself) A gallery where you add and remove photos yourself, so you never have to ask when the photos change. Normal image storage and delivery are included, with no usage bill from Mumu Labo after launch. Video and original-file archiving are not included. | JPY 23,100 per site |
| News and blog posts (write articles yourself) A simple editing screen for writing, publishing, and fixing news or blog posts yourself. | JPY 27,500 per site |
| Online payments (take card payments on the page) Take card payments for products or bookings right on the page, using the Stripe payment service. ※ The payment service’s fee (a few percent of sales) is charged separately | JPY 22,000 per site |
| AI chat assistant (answers visitors’ questions automatically) A chat window like the one on this site, where an AI answers visitors’ questions. We prepare the answers together in advance. ※ AI usage is billed at cost, only for what is used. Rough monthly cost by provider: Assumptions: about 100 conversations a month (5 questions each; roughly 2,500 input and 200 output tokens per question), at each provider’s official rates as of September 2026, converted at JPY 160 per US dollar. - Google Gemini (2.5 Flash-Lite)
- about JPY 30 / month
- OpenAI ChatGPT (GPT-5 mini)
- about JPY 80 / month
- Anthropic Claude (Haiku 4.5)
- about JPY 300 / month
- Higher-end models (GPT-5 / Claude Sonnet 5 / Gemini 2.5 Pro)
- about JPY 400–600 / month
You pay only for what is used — a month with no conversations costs nothing, and ten times the conversations costs roughly ten times as much. Providers may change their rates. | JPY 27,500 per site |
| Going live and afterwards |
| Custom domain (your own address, like yourshop.com) Open the site at your own address (e.g. yourshop.com) instead of the free one (e.g. yourshop.pages.dev). ※ The domain itself (about JPY 1,000–3,000 a year) is billed at cost | Regular price JPY 2,750 First time JPY 0 per domain |
| Visitor statistics (see how many people visit) See how many people visit and what they searched for to find you, using Google’s free tools. | JPY 2,750 per site |
| Changes after launch Small changes after the site is live — new text or photos, updated opening hours, and so on. From JPY 2,750 per small change, quoted by scope. | from JPY 2,750 per change |
More pages
Internal links in the same design
JPY 11,000
per additional 5 pages or fewer
Extra pages that look like the top page — about, menu, access, and so on. The first 5 are included at no charge. Beyond that, the price applies to each additional group of up to 5 pages.
A page with a different design
A page with its own look and feel, different from the top page. Treated the same as building one more site.
A Japanese or English version of an existing page, in the same look, for readers in the other language.
Map, social links, or video on the page
Google Maps, buttons for Instagram, X, and LINE, YouTube videos, and similar, shown inside the page.
Hearing from your customers
Contact form (visitors can message you from the page)
Visitors write their name and request on the page and send it. It lands in your email, the sender gets an automatic confirmation, and spam is blocked. Normal operation is included, with no usage bill from Mumu Labo after launch.
Booking or sign-up form (with dates, times, or courses to choose)
A longer form for booking requests and applications, with an automatic confirmation to the sender. Normal operation is included, with no usage bill from Mumu Labo after launch. Live availability and instant confirmation are separate features.
Members-only pages and updating it yourself
Locked page (only people who enter the passcode can see it)
Opening the page shows a passcode box, and only people who enter the right passcode can see what is inside. There is one passcode, which you share only with the people you want to let in — for example, printed on wedding invitations for the photo page, or given to members for a members-only price list. Unlike the login option below, everyone uses the same passcode, so nobody has to register or get their own ID.
Login (each member gets their own ID and password)
Members sign in with their own ID and password and can reset a forgotten password themselves. Normal operation is included, with no usage bill from Mumu Labo after launch. Roles and an administration dashboard are separate features.
SSO / social login (sign in with a Google or LINE account)
Lets members sign in with the Google, LINE, or Apple account they already use, instead of creating a new ID and password.
※ Added on top of the login option
Photo uploads (add photos yourself)
A gallery where you add and remove photos yourself, so you never have to ask when the photos change. Normal image storage and delivery are included, with no usage bill from Mumu Labo after launch. Video and original-file archiving are not included.
News and blog posts (write articles yourself)
A simple editing screen for writing, publishing, and fixing news or blog posts yourself.
Online payments (take card payments on the page)
Take card payments for products or bookings right on the page, using the Stripe payment service.
※ The payment service’s fee (a few percent of sales) is charged separately
AI chat assistant (answers visitors’ questions automatically)
A chat window like the one on this site, where an AI answers visitors’ questions. We prepare the answers together in advance.
※ AI usage is billed at cost, only for what is used. Rough monthly cost by provider:
Assumptions: about 100 conversations a month (5 questions each; roughly 2,500 input and 200 output tokens per question), at each provider’s official rates as of September 2026, converted at JPY 160 per US dollar.
- Google Gemini (2.5 Flash-Lite)
- about JPY 30 / month
- OpenAI ChatGPT (GPT-5 mini)
- about JPY 80 / month
- Anthropic Claude (Haiku 4.5)
- about JPY 300 / month
- Higher-end models (GPT-5 / Claude Sonnet 5 / Gemini 2.5 Pro)
- about JPY 400–600 / month
You pay only for what is used — a month with no conversations costs nothing, and ten times the conversations costs roughly ten times as much. Providers may change their rates.
Going live and afterwards
Custom domain (your own address, like yourshop.com)
Regular price JPY 2,750 First time JPY 0
per domain
Open the site at your own address (e.g. yourshop.com) instead of the free one (e.g. yourshop.pages.dev).
※ The domain itself (about JPY 1,000–3,000 a year) is billed at cost
Visitor statistics (see how many people visit)
See how many people visit and what they searched for to find you, using Google’s free tools.
Changes after launch
from JPY 2,750
per change
Small changes after the site is live — new text or photos, updated opening hours, and so on. From JPY 2,750 per small change, quoted by scope.
All prices include tax and are estimates. They vary with the content and how ready the text and photos are, so I confirm the final price before work starts. The free first build covers the site itself (including up to 5 pages in the same look); options other than those shown at JPY 0 are charged even on the first project. Contact forms, booking or application forms, login, and photo uploads include normal operation, with no post-launch usage bill from Mumu Labo. If an external service is added, any amount the customer pays directly to that provider is disclosed before work starts. A struck-through amount is the regular price, which applies once the campaign ends. Even for options you choose, the amount may go up or down depending on whether the work fits within the scope of a simple website or landing page.