Release rule

How to Book Tsugumian: Reservation Release Day, Phone and Rules (2026)

活鰻の店 つぐみ庵 · Komagome, Tokyo · Unagi · Lunch & dinner

How to book this house

Phone only: the line opens 09:30 JST on the 1st of each month (2nd if closed) for the following month; only a handful of new parties get through. Friday and Saturday only, cash only.

Next release
November 2, 2026 · 09:30 JST → December 2026

Dates through November 2026 are already open. Already open for your dates? Our desk can still call and ask for any remaining or returned seats. Ask the desk →

This house books only by phone, in Japanese. Our Tokyo desk can make the call on release day: ¥12,000 per seat, only if we secure it. Ask the desk →

Where bookings are taken
Phone only
Lunch / dinner
Lunch & dinner
Phone line
03-3823-4591 (Japanese); the book opens 09:30 JST on the 1st of each month (2nd if the 1st is a closed day); on other days calls are answered irregularly
If a seat comes back

This house takes bookings only by phone, so there is no online vacancy alert.

We still send you release-date alerts: for a set release date, the day before, on the morning of release day (08:00 JST) and about 30 minutes before when the time is known; for houses that open a little every day, a weekly summary.

Allergies or dietary needs? Make a Japanese dining card →

Next release days

  • 2Nov09:30 JST
    Monday, November 2, 2026
    For dates in December 2026
  • 1Dec09:30 JST
    Tuesday, December 1, 2026
    For dates in January 2027
  • 4Jan09:30 JST
    Monday, January 4, 2027
    For dates in February 2027

Last verified August 16, 2026 · checked by our desk October 4, 2026

Source for the booking rule: a published guide (eat.hangover.work), read September 23, 2026.

All times are Japan Standard Time (UTC+9).

More Unagi in the same region

All houses in Tokyo →

When does Tsugumian open its reservation book?

Reservations at Tsugumian next open on November 2, 2026 at 09:30 JST, for dates in December 2026. Phone only: the line opens 09:30 JST on the 1st of each month (2nd if closed) for the following month; only a handful of new parties get through. Friday and Saturday only, cash only. All times are Japan Standard Time (UTC+9).

How do I book Tsugumian from abroad?

Tsugumian takes reservations by phone in Japanese only. Phone line: 03-3823-4591 (Japanese); the book opens 09:30 JST on the 1st of each month (2nd if the 1st is a closed day); on other days calls are answered irregularly. From abroad, either call at those hours or have a Japanese speaker call for you. If you would rather not, our Tokyo desk can request it for you: ¥12,000 per seat, charged only if the table is secured. A free release-date alert emails you the day before, on the morning of release day (08:00 JST) and about 30 minutes before when the opening time is known; houses that open a little every day come in a weekly summary.

What time zone is the release time?

All times are Japan Standard Time (UTC+9). Release days are computed from the house's published rule and re-checked monthly.

More release days in Tokyo

Tokyo: when hard-to-book restaurants open reservations →

Request this table — our Tokyo desk calls in Japanese on release day · ¥12,000 per seat, only if secured →

← All 1,240 houses in the booking calendar

Rules are verified against official notices and platform listings and re-checked monthly. Houses change their systems without warning; treat the calendar as a planning tool. For restaurants in our collection, our desk confirms the specifics for your dates when you request.