Release rule
How to Book Sushi Mamoru: Reservation Release Day, Phone and Rules (2026)
鮨 守 · Ginza, Tokyo · Sushi · Lunch & dinner
How to book this house
Book on TableCheck (English available), Ikyu, by phone or SMS, by the day before. Eleven seats, closed Monday.
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The release day is not published.
- Where bookings are taken
- Platform · TableCheckTableCheckIkyu
- Lunch / dinner
- Lunch & dinner
- Phone line
- 03-6264-5657 (Japanese); SMS bookings 080-7500-3103
- The house's cancellation charge
- From 1 day before100%
- 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: TableCheck, read 2026-10-04
- If a seat comes back
TableCheck has no vacancy alert for future dates; its emails are about your own booking, and a same-day queue exists only where the restaurant turns it on. support-diners.tablecheck.com
Trained at すし家（かねさか系）, in the Sushi Kanesaka family
Allergies or dietary needs? Make a Japanese dining card →
Next release days
Rule not published — we confirm per date
Before you ask us
- Smart casual. Shorts and sandals are refused at the door.
Last verified October 3, 2026 · checked by our desk October 4, 2026
All times are Japan Standard Time (UTC+9).
When does Sushi Mamoru open its reservation book?
Book on TableCheck (English available), Ikyu, by phone or SMS, by the day before. Eleven seats, closed Monday. The release day is not published. All times are Japan Standard Time (UTC+9).
What does Sushi Mamoru charge if you cancel?
From 1 day before 100% / 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: TableCheck, read 2026-10-04
How do I book Sushi Mamoru from abroad?
Sushi Mamoru takes reservations online through TableCheck, 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.
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← 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.