Restaurant Kogen
A Western cuisine restaurant in Kumagaya founded in 1969 and operating for over 50 years. Features a log cabin-style exterior and calm atmosphere. The signature '10-Dollar Steak'—a US-sourced lean beef steak priced by the day's USD exchange rate at the Tokyo forex market—is a one-of-a-kind concept. Handmade 150g hamburger steak also highly praised. Tabelog Kumagaya yoshoku #1 (3.40/127 reviews). Yahoo Maps 4.22/59 reviews.
Reviews say 'The 50-year-old atmosphere is wonderful', 'The 10-Dollar Steak concept is interesting', 'The hamburger steak is truly delicious'. Yahoo Maps 4.22/59, TripAdvisor 4.5/6—consistently high ratings. Tabelog 127 reviews include many repeat-visitor posts. Negative reviews only about 'couldn't go due to irregular holidays' — no fake review suspicion.