The Verdict
IMAHAN has been serving sukiyaki since 1895 — which makes it among the oldest operational restaurants in Tokyo — and the Isetan Shinjuku branch brings the tradition to one of the city's most significant retail addresses, on the seventh floor of the department store that defines Japanese retail at its highest level. The sukiyaki format that Imahan serves is the Kanto tradition: the beef is first seared briefly in the iron pot, then sake, soy, and sugar are added to create the warishita sauce that the remaining ingredients — tofu, chrysanthemum leaves, wheat gluten, enoki — simmer in across the meal.
The wagyu used for Imahan's sukiyaki course is sourced from farms whose relationships with the restaurant predate several generations of management. The beef is sliced to the specific thickness that the Kanto sukiyaki tradition requires — thin enough to cook in seconds, thick enough to maintain the specific texture that the dipping raw egg completes. The egg — fresh-cracked, beaten at the table, used as the condiment into which each cooked piece is dipped — is as important to the preparation's flavour as the warishita sauce itself.
One Michelin star and 130 years of operation make Imahan one of the most historically grounded of Tokyo's starred restaurants. The private room format — individual rooms for groups of two to eight, each with its own iron pot and attendant who manages the cooking throughout the meal — provides a dining experience that the large-format table cannot replicate. For international guests who want to understand what Japanese luxury dining looked like before the Michelin era began, Imahan provides the most direct available path.
Why It Works for a Birthday
The private room format at Imahan — a group gathered around a single iron pot, the attendant managing the cooking, the meal building from the first slice of wagyu to the final simmer of tofu in the enriched sauce — creates a celebratory intimacy that the standard restaurant table cannot produce. The ceremony of the preparation, the shared pot, and the collective experience of watching the meal develop are the birthday formats that the Japanese family tradition has used for generations.
Also in Tokyo
Explore the full Tokyo restaurant guide. See our Impress Clients, First Date, and Close a Deal occasion guides for selected picks across Asia.