CUSTOM DEVELOPMENT
Unlocking the systems only large enterprises could afford.
The systems that form a company's backbone used to belong only to companies spending hundreds of millions. We custom-build around your operations, keep your current software, and stay through operations.
* We don't start with a build. First, Tech Advisory (from ¥100,000/mo) settles the requirements.
WHY WE BUILD
Systems that were never born are being born.
Some systems ended at “tens of millions, maybe hundreds” and sent people back to Excel, fax, and month-end overtime.
Put those never-born systems back on the table. We build only what is needed and return people's time to the field.
HOW IT WORKS
We don't start with a build. We start with Tech Advisory.
We settle requirements and decide whether a build is worth it before development starts.
Start with Tech Advisory
From ¥100,000/mo
Review the work and decide what AI should handle.
Try it small first
1-month trial first
We decide whether ready-made AI is enough, whether to build, or whether to stop.
Build once it's settled
Development from ¥30M
Build only once requirements and ROI are clear.
WHY THIS PRICE IS POSSIBLE
US-style development — Leach keeps the IP, you hold the license
- 1
Leach keeps the IP; you receive the license and monthly operations support.
- 2
We build on shared foundations and AI instead of starting from zero.
- 3
That makes systems once reserved for large enterprises reachable.
Examples of work you can hand over
Order intake through verification and invoicing
Connections with freee, Excel, and your current systems
Reading and transcribing PDF, fax, and email forms
Monthly closing, matching, and discrepancy checks
PRICING
Development from ¥30M (custom quote) + operations from a few ¥100Ks/mo
US-style contracting (we hold the IP, you get the licence) is why we can quote this. We lock the requirements in a free consultation and through the advisory before we build.
People's time, back to the work only people can do.
Systems built for one company can later become SaaS for others with the same pain. Totsugo.com was born this way.
We build systems loved by the field and by the people running the company, freeing time lost to retyping and matching so it can return to improvement, sales, and R&D.
MISSION
Free people from every inefficiency, and power Japan as a nation built on technology.
FAQ
Q. Does it cost ¥30M right away?＋
No. First, Tech Advisory from ¥100,000/mo settles requirements and ROI.
Q. If Leach keeps the IP, is that bad for us?＋
Your business data and confidential information remain yours. Leach keeps the program copyright, which is discounted from development cost.
Q. How long does development take?＋
It depends on scope. After requirements, we show small working pieces every few weeks.
Q. What if requirements change midway?＋
Continuous improvement is part of monthly operations. We design assuming the business will change.
Start with a free 30-minute conversation
We decide where to begin together
AI, estimates, and systems. Online, in 30 minutes.