Release rule

How to Book TEN-MASA: Reservation Release Day, Phone and Rules (2026)

天雅 · Nakameguro, Tokyo · Tempura · Dinner only

How to book this house

Book on Tabelog or Ikyu (first come, no fixed release day) or call 03-6303-4005. Dinner only, Tuesday–Sunday; 16 seats; One MICHELIN Star (MICHELIN Guide Japan 2026).

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Not the Marunouchi Tenmasa.

Next release
No release day — book any time

This house books only in the name of the guest who attends. We will ask in your name; if the house declines bookings arranged on a guest's behalf, we will tell you and nothing is charged.

Where bookings are taken
Platform · Tabelog, IkyuTabelogIkyu
Lunch / dinner
Dinner only
Phone line
03-6303-4005 (Japanese)
The house's cancellation charge
  • From 00:00 JST, 1 day before50%
  • Same day, with notice100%
  • Same day, no notice (no-show)100%

Charged by the house, not by us. A plan's own policy takes precedence.

Source: Ikyu, read 2026-10-04

If a seat comes back

Cancellations: on the restaurant's Ikyu page, tick "空席通知メールに登録する" (vacancy-notice email) and Ikyu notifies you — members only, offered by some restaurants, and it does not hold the seat. faq.ikyu.com

Allergies or dietary needs? Make a Japanese dining card →

Next release days

No release day — book any time

Before you ask us

  • Smart casual. Shorts and sandals are refused at the door.

Last verified September 23, 2026

Source for the booking rule: the booking page (restaurant.ikyu.com), read September 23, 2026.

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

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When does TEN-MASA open its reservation book?

Book on Tabelog or Ikyu (first come, no fixed release day) or call 03-6303-4005. Dinner only, Tuesday–Sunday; 16 seats; One MICHELIN Star (MICHELIN Guide Japan 2026). Not the Marunouchi Tenmasa. All times are Japan Standard Time (UTC+9).

What does TEN-MASA charge if you cancel?

From 00:00 JST, 1 day before 50% / Same day, with notice 100% / Same day, no notice (no-show) 100%. Charged by the house, not by us. A plan's own policy takes precedence. Source: Ikyu, read 2026-10-04

How do I book TEN-MASA from abroad?

TEN-MASA takes reservations online through Tabelog and Ikyu, which you can use from abroad with your own account and a credit card. 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 →

← 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.