Release rule

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

割烹 室井 · Nishi-Azabu, Tokyo · Kappō · Dinner only

How to book this house

OMAKASE only (official site); release timing not confirmed. Eight-seat kappo counter in Nishi-Azabu with a shared start time; closed Sundays and holiday Mondays.

Where bookings are taken
Platform · OMAKASEOMAKASE
Lunch / dinner
Dinner only
Phone line
03-6805-1994 (Japanese; reception hours not published — bookings on OMAKASE)
If a seat comes back

Cancellations: add the restaurant to your favorites on OMAKASE and it notifies you, first come first served. omakase-japan.zendesk.com

About this house

Dashi-led kappo in Nishi-Azabu, moved from Ginza. One MICHELIN Star (2026).

Read more

Eight counter seats, 10% service charge. Tabelog Japanese Cuisine TOKYO 100 (2025). Not Mushitsu (formerly Azabu Muroi) in Ginza.

Booking details

How the book opens

The official site takes bookings through OMAKASE only ("ご予約はOMAKASEにて承ります"). No release timing is published; open dates are posted on the OMAKASE store page.

Exceptions and seasons

Dinner only from 18:00; start time varies by day (17:30, 18:00, 18:30 or 20:30) and everyone starts together, so arrive on time. Closed Sundays and holiday Mondays, plus irregular days. Please avoid strong perfume.

Allergies or dietary needs? Make a Japanese dining card →

Next release days

Rule not published — we confirm per date

Last verified October 3, 2026 · checked by our desk October 18, 2026

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

More houses in Nishi-Azabu, Tokyo

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When does Kappo Muroi open its reservation book?

OMAKASE only (official site); release timing not confirmed. Eight-seat kappo counter in Nishi-Azabu with a shared start time; closed Sundays and holiday Mondays. All times are Japan Standard Time (UTC+9).

How do I book Kappo Muroi from abroad?

Kappo Muroi takes reservations online through OMAKASE, 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 1,504 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.