The restaurant OS that grows sales
on your own channels — zero referral fees

Starting from QR mobile ordering, get every “grow-your-sales” feature in one place: online reservations, prepaid passes, e-gift cards, win-back, and an AI menu advisor. Plus purchasing/stocktake cost control, per-guest-spend & turnover analytics, and HACCP hygiene logs to run the floor too. Referral fees are ¥0. Open in 5 minutes — first month free, no card required.

🚀 Start free 💴 See pricing

Izakaya · Yakiniku · Café · Ramen · Italian · Chinese · Korean · Sushi · Restaurant — 9 industry templates

Is your revenue being shaved off by other companies’ “referral fees”?

💸

Paying referral fees
to listing sites, forever

→ Bring in new guests via your own Google, LINE and QR. Zero referral fees.

🔁

Guests come once
and never return

→ Prepaid passes, e-gift cards and win-back systematize repeat visits.

📊

No idea which dishes
actually make money

→ The AI menu advisor auto-classifies “star / cut” by cost × sales.

😩

Short-staffed,
the floor can’t keep up

→ Guest self-ordering + online reservations + waitlist run with fewer hands.

The full “grow-your-sales” loop, in one system.

Not just a system that takes orders. From acquisition to repeat visits to profit analysis — it brings the whole flow of building restaurant sales in-house.

🎣
Acquisition (zero fees)

Google free funnel · LINE official · online reservations · waitlist

Bring in new guests on your own channels, not listing sites

🎁
New guests (viral)

Gift a meal e-gift card to friends · referral coupons

Existing guests bring in new ones

💳
Prepaid (revenue upfront)

Punch passes · all-you-can-visit · subscriptions

Cash first, and a reason to come back

🔁
Repeat

Win-back · auto LINE coupons · customer ledger CRM

Automatically win back guests who were drifting away

📊
Maximize profit

True cost rate from purchasing/stocktake · per-guest-spend & turnover analytics · AI menu advisor · management dashboard (sales − cost − labor − fixed = operating profit)

See where you make money at a glance — with suggested actions

Not just sales. Floor operations are covered end-to-end, too.

Cost, inventory, staffing, hygiene, inbound — the “hassles” of running a restaurant in one system. Stop juggling separate apps.

📦
Cost & inventory

Purchasing (weighted-average cost) · stocktake (loss visibility) · ingredients/recipes · reorder suggestions

Control cost with numbers, not gut feel

📈
Management insight

Per-guest spend · turnover · day × hour heatmap · true operating profit incl. fixed costs

See your busy hours and profitable hours at a glance

🧑‍🍳
Staffing & shifts

Time clock · demand-based shift optimization · labor cost incl. premium pay

Run smoothly even when short-handed

🧼
Hygiene (HACCP)

Record & store the daily checks (temperatures, checklists) mandated since 2021, on a phone

Inspection-ready, paper-free

🌏
Inbound & accessibility

Auto 4-language display · large-text easy ordering (elderly / not tech-savvy) · dietary labels

Anyone can order without getting lost

🧾
Register & checkout

Split bills · cashless methods · cash-drawer audit · qualified-invoice (registration number) receipts

Checkout is complete in this one system

Choose how you’ll use it

👔
Owner / Manager
Sales / orders / menu management.
Sign in to the store console.
💻 Recommended: PC / tablet (Chrome)
📖
FAQ
Reservations / pricing / setup / features / security, etc.
📧 Support: support@koyama-engine.co.jp
📄
Brochure (A4 PDF)
A one-page handout of the service overview and pricing.
Print → save as PDF to bring to prospects. (Japanese)
🖨️ A4 portrait / color recommended