Release rule
How to Book Sushi Osamu: Reservation Release Day, Phone and Rules (2026)
鮨 おさむ · Nagazumi, Fukuoka · Sushi · Dinner only
How to book this house
Book by phone (or request a seat via Ikyu); no set release date, so call as soon as your dates are fixed — reviews mention a month ahead. Six to eight counter seats, dinner from 18:00, closed Wednesday and Thursday.
- Next release
- No release day — book any time
- Where bookings are taken
- PlatformIkyuPocket Concierge
- Lunch / dinner
- Dinner only
- Phone line
- 092-511-2288 (Japanese; book by the day before)
- The house's cancellation charge
- 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
- No booking for one — not even paying for two seats. It is the house's own rule; a Japanese guest dining alone is turned away too.
Last verified September 23, 2026 · checked by our desk October 4, 2026
Source for the booking rule: Tabelog, read September 23, 2026.
All times are Japan Standard Time (UTC+9).
When does Sushi Osamu open its reservation book?
Book by phone (or request a seat via Ikyu); no set release date, so call as soon as your dates are fixed — reviews mention a month ahead. Six to eight counter seats, dinner from 18:00, closed Wednesday and Thursday. All times are Japan Standard Time (UTC+9).
What does Sushi Osamu charge if you cancel?
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 Sushi Osamu from abroad?
Sushi Osamu takes reservations online through a booking platform, 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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- Robatayaki SanrokuKahoku, Yamaga, Kumamoto
- Sushi TaitoHondo, Amakusa, Kumamoto
- IrohaSuizenji, Kumamoto
Kyushu & Okinawa: 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.