Ritei Sanbun is a small izakaya near Higashi-Ginza Station in Ginza 3-chome, serving seasonal Japanese dishes and sake. At lunch it serves Ryukyu-don, a local dish from Oita, and at night it serves hoe and dishes made with seasonal ingredients. The space has only five counter seats and two tables, so reservations are recommended. The portions are small, which makes it hard to enjoy many different dishes over a long stay.