On a corner of Kanda that the 1923 fires cleared and the war then spared, a dark wooden house rebuilt in 1930 (now a protected historic building)
serves exactly one thing: ankō, the deep-sea anglerfish, in a sweet-soy
hot pot that has defined the dish in Tokyo since the Tempo era (1830).
Isegen is the city's only remaining anglerfish specialist, and in winter,
its tatami rooms are one of the great seasonal experiences in Japan.
What you eat
The anglerfish is butchered by the traditional hanging method and served
nose-to-tail in the pot — firm flesh, silken skin, and ankimo, the liver
that food writers call the foie gras of the sea. The broth finishes over
rice. The house serves anglerfish year-round (it is the only specialist
left in the city), but the pot is at its deepest in the cold months, and
summer brings its own lighter course.
What else is on this street
Isegen sits one street off the tourist flow of Akihabara, in a pocket of
old Tokyo that locals treat as a pilgrimage — the charcoal
chicken-sukiyaki house Botan is next door. Two of Edo's survivors, on one
corner.
Save it for
Winter visitors who want the meal of the season rather than the meal of
the guidebook. Combine with Botan next door across two evenings and you
have the best-preserved corner of pre-war Tokyo dining, in full.
Isegen: common questions
Can you book Isegen from abroad?
Yes — this is exactly what we do. Mainly by phone, in Japanese; a portion of seats also opens on Japanese reservation sites. Winter seats — the season that matters — are few and go quickly. Our Tokyo desk places the booking by phone, and the ¥6,000-per-seat fee is charged only if we confirm your table.
How much does Isegen cost?
Lunch from ~¥6,000 · Dinner ~¥12,000. You settle the course directly with the restaurant; our booking fee is ¥6,000 per seat on top, paid only once your table is confirmed.
Does Isegen take credit cards?
Cards (VISA / Mastercard / JCB / AMEX / Diners) and QR codes accepted (no e-money) · +10% service after 16:00 · chair-seat guarantee ¥2,000–4,000 per group · chair private room ¥5,000–12,000 per room.
Where is Isegen, and how do I get there?
Isegen is in Kanda-Awajicho, Tokyo. Awajicho / Ogawamachi Stn, 3 min walk
When is Isegen open?
Tue–Fri 11:30–14:00 · 17:00–22:00 · Sat 11:30–15:00 · 16:00–22:00 · Sun & holidays 11:30–15:00 · 16:00–21:00. (Mondays year-round; also Sundays & holidays from April to October)
We can seat you here. Our Tokyo desk works beyond the booking apps — house relationships, Japanese phone lines, allocation seats. Booking fee ¥6,000/per seat (≈ $38), charged only when your table is confirmed. No seat, no fee.
Request this table 
