Omi Beef Burger SUDAKU, located in Ryuo Town, Gamo County, Shiga Prefecture, is rolling out two new weekday-only promotions from June 2026. The campaigns target both the daytime crowd — shoppers and drivers passing through — and evening visitors looking for a more filling meal.
Weekday ¥100 Drink Campaign ("Hiru Sudaku")

On weekdays from 10:00 AM to 2:00 PM, an M-size iced coffee or iced tea is available for ¥100 (tax included). The timing is suited for a quick break during a shopping trip or a stop along a drive route.
Campaign Details
- Period: From June 2026
- Hours: 10:00 AM to 2:00 PM (weekdays only)
- Details: M-size iced coffee or M-size iced tea for ¥100 (tax included)
Evening Patty Add-On Campaign ("Yoru Sudaku")

Every day from 5:00 PM, an extra patty can be added to any burger for ¥200 (tax included). The option applies across the menu, including the Omi Beef Burger and the Sudaku Burger, for anyone wanting a more substantial portion.
Campaign Details
- Period: From June 2026
- Hours: From 5:00 PM daily
- Details: Add one patty to any burger (+¥200, tax included)
About Omi Beef Burger SUDAKU

Omi Beef Burger SUDAKU is a hamburger restaurant specializing in Omi beef, a branded wagyu from Shiga Prefecture. The restaurant is situated near Mitsui Outlet Park Shiga Ryuo and serves both local residents and tourists visiting the area.
The burgers use 100% Omi beef, with a focus on freshness. The beef is minced from cuts such as kalbi (short rib) and roast — cuts typically found on yakiniku menus — which gives the patties a distinctive flavor and aroma compared to standard ground beef products.
Store Information
- Store Name: Omi Beef Burger SUDAKU
- Address: Ryuo Town, Gamo County, Shiga Prefecture
- Hours: 10:00 AM to 7:00 PM