Web System Development
We replace manual work in Excel and by phone
with a system that fits the way your company works
We develop business systems for reservation management, ordering, customer management, LINE integration, and more.
Because we use AI in development, we can build faster than conventional development and keep costs down.
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If This Sounds Like You, Talk to Merci
- URGENT
Managing things in Excel or on paper has hit its limit, and mistakes and effort keep growing
We learn how your spreadsheets and paperwork flow today, then replace them with a system where entry, search, and totals are all handled on one screen.
- URGENT
Taking orders by phone and fax eats up hours every day
We build a system where your clients can order from your website or LINE, and incoming orders line up in a single list automatically.
- URGENT
You keep re-entering the same information in several places
What you enter flows straight into your customer list and billing documents, so there's no more re-entering.
- URGENT
Taking reservations by phone keeps interrupting your work
We let you take reservations 24 hours a day from your website or LINE, with a reservation list and confirmation notices handled automatically.
Off-the-shelf systems and apps don't fit the way you work
We build a system with only the features you need, tailored to how you work today.
Software firms quoted a high price and told you it would take months
By using AI in development, we cut both time and cost. You can also start with a small feature and expand it as you use it.
You're worried it will end up as a system nobody uses
We build it while you check the screens, and after launch we review how it's used with you, shaping it into something your team actually uses.
Sign-ups on your website and your internal management aren't connected
We connect your website's sign-up forms and member pages to the system, so sign-ups appear directly in your internal list.
Systems Merci can build
Reservation management system
Ordering system
Internal information management system
Customer management system
LINE integration
What Merci does to build systems that actually get used
Developing with AI, so it's built fast and affordably
We use AI for system design and programming, so we can develop in less time and at lower cost than before. Based on what we decide in our meetings, AI and our developers build it together.

Connects with your website
The systems we develop can be connected to your website's sign-up forms and member pages. When a customer makes a reservation or signs up on your website, it is reflected directly in the system.
We use a system built on the same approach every day ourselves
The dedicated My Page that customers use for Merci's website maintenance is also our own system, developed on the same approach.
How system development proceeds
We learn how your work flows today and what you want the system to solve
We decide the features you need and the screen layout
We develop it, adjusting as you check the screens
After launch, we begin operation while checking how it is used
Web System Development pricing
These are rough guidelines. We provide a quote after hearing which features you need.
| Service | Price (excl. tax) |
|---|---|
| Small-scale system (one business task, such as taking reservations or a customer list) | from ¥300,000 |
| System connecting multiple tasks (for example, ordering and customer management together) | from ¥800,000 |
| Maintenance and updates after launch | from ¥10,000 per month |
FAQ
You can consult us regardless of industry, whether it's reservation management, ordering, customer management, or internal information management. We can also handle LINE integration if you need it.
It depends on the scale and complexity of the features, so we will give you a guideline after a consultation.
Yes, we can develop it so that it works together with your sign-up forms and member pages.
Yes, you can also request maintenance after development. It starts from ¥10,000 per month (excl. tax), and we provide a quote based on your needs.
(Choose a date and time, and the link to your Zoom meeting room is sent automatically.)














