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My Reservations
Book at Grand Cinq - Oriental Hotel Tokyo Bay
Message from Venue
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From January 31st (Sat) to May 8th (Fri), 2026, we will be holding the "Strawberry Fair - A Journey Through French Cuisine," featuring seasonal strawberries and a trip to the gourmet delights of France. *Golden Week Special Period: May 2nd (Sat) - May 6th (Wed), 2026
From May 9th (Sat) to August 31st (Mon), 2026, awaken your appetite! Deliciousness is justice! We will be holding the "Sinful Meat Fair." *Obon Special Period: August 8th (Sat) - August 16th (Sun), 2026
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<b>From May 9th (Sat), 2026, semi-private rooms will be available for a fee of 2000 yen per room (2-12 people). *All discounts excluded*
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▶Club Oriental members are requested to present their member QR code.
▶If anyone in your party has allergies, please contact us by phone.
▶Please note that we may not be able to accommodate your seating requests.
▶If we are unable to contact you 30 minutes after your reservation time, we may unfortunately have to cancel your reservation. Please be sure to contact us if you will be late.
▶Saturdays, Sundays, and public holidays are very busy, so please use public transportation. Please note that if the hotel parking lot is full, we may direct you to a nearby contracted parking lot.
▶Business hours may change during the New Year holidays, Christmas, Golden Week, Obon period, and event days.
▶When entering your reservation name in Kanji, please also enter it in Kana.
★Please note that a 100% cancellation fee will be charged for cancellations made after 5 PM the day before your reservation.
★Internet reservations are accepted until 5 PM the day before your reservation.
I confirm I've read the Message from Venue above
-- Select Time --
-- Adults --
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-- Senior --
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65 years and over
-- Children --
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12 years and under
-- Baby --
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6 years and under
Category
Regular seat
Semi-private
Cooking Class
Availability
Your selected time is unavailable. Please choose a different time.
Lunch & Dinner Buffet (excluding Golden Week and Obon holidays)
Dinner-only birthday and anniversary plan
Alcohol-free drinks (self-service)
Lunch & Dinner Buffet (excluding Golden Week and Obon holidays)
Weekday Unlimited Dinner Buffet Adult
¥ 6,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Weekday Unlimited Dinner Buffet Adult
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Regular seat
Read more
Weekday unlimited dinner buffet - Senior (65 years and older)
¥ 5,300
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Weekday unlimited dinner buffet - Senior (65 years and older)
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Regular seat
Read more
Weekday Unlimited Dinner Buffet for Elementary School Students
¥ 3,200
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Weekday Unlimited Dinner Buffet for Elementary School Students
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Regular seat
Read more
Weekday Unlimited Dinner Buffet 4-6 years old
¥ 2,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Weekday Unlimited Dinner Buffet 4-6 years old
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Regular seat
Read more
Weekday Unlimited Dinner Buffet 0-3 years old
¥ 0
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Weekday Unlimited Dinner Buffet 0-3 years old
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Regular seat
Read more
Saturdays, Sundays and Holidays 120-minute Dinner Buffet Adults
¥ 7,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Saturdays, Sundays and Holidays 120-minute Dinner Buffet Adults
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Regular seat
Read more
120-minute dinner buffet on weekends and holidays Seniors (65 and over)
¥ 6,300
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
120-minute dinner buffet on weekends and holidays Seniors (65 and over)
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Regular seat
Read more
Saturdays, Sundays and Holidays 120-minute Dinner Buffet Elementary School Students
¥ 3,500
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Saturdays, Sundays and Holidays 120-minute Dinner Buffet Elementary School Students
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Regular seat
Read more
Saturdays, Sundays and Holidays 120-minute Dinner Buffet for ages 4-6
¥ 2,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Saturdays, Sundays and Holidays 120-minute Dinner Buffet for ages 4-6
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Regular seat
Read more
Saturdays, Sundays and Holidays 120-minute Dinner Buffet for 0-3 year olds
¥ 0
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Saturdays, Sundays and Holidays 120-minute Dinner Buffet for 0-3 year olds
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Regular seat
Read more
[Semi-private room] Private room fee (2-12 people)
A private room is available for an additional 2,000 yen per room.
Reservations are required by 5 PM the day before.
The private room is glass-walled with an open atrium above and below, and the door can be opened and closed, making it a semi-private room.
No discounts are available, including for Club Oriental members.
Please be sure to select this menu. Please note that an additional 2,000 yen charge will apply if no selection is made.
¥ 2,000
(Tax incl.)
-- Qty --
1
[Semi-private room] Private room fee (2-12 people)
A private room is available for an additional 2,000 yen per room.
Reservations are required by 5 PM the day before.
The private room is glass-walled with an open atrium above and below, and the door can be opened and closed, making it a semi-private room.
No discounts are available, including for Club Oriental members.
Please be sure to select this menu. Please note that an additional 2,000 yen charge will apply if no selection is made.
Valid Dates
May 09 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Order Limit
1 ~ 1
Seat Category
Semi-private
Read more
[Semi-private room] Weekday unlimited dinner buffet (adults only)
¥ 6,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekday unlimited dinner buffet (adults only)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekday unlimited dinner buffet - Seniors (65 years and older)
¥ 5,300
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekday unlimited dinner buffet - Seniors (65 years and older)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekday unlimited dinner buffet for elementary school students
¥ 3,200
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekday unlimited dinner buffet for elementary school students
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekday unlimited dinner buffet (ages 4-6)
¥ 2,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekday unlimited dinner buffet (ages 4-6)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Semi-private
Read more
【半個室】平日無制限ディナーブッフェ 0-3歳
¥ 0
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
【半個室】平日無制限ディナーブッフェ 0-3歳
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
M, Tu, W, Th, F
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Private room fee (2-12 people)
A private room is available for an additional 2,000 yen per room.
Reservations are required by 5 PM the day before.
The private room is glass-walled with an open atrium above and below, and the door can be opened and closed, making it a semi-private room.
No discounts are available, including for Club Oriental members.
Please be sure to select this menu. Please note that an additional 2,000 yen charge will apply if no selection is made.
¥ 2,000
(Tax incl.)
-- Qty --
1
[Semi-private room] Private room fee (2-12 people)
A private room is available for an additional 2,000 yen per room.
Reservations are required by 5 PM the day before.
The private room is glass-walled with an open atrium above and below, and the door can be opened and closed, making it a semi-private room.
No discounts are available, including for Club Oriental members.
Please be sure to select this menu. Please note that an additional 2,000 yen charge will apply if no selection is made.
Valid Dates
May 09 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Order Limit
1 ~ 1
Seat Category
Semi-private
Read more
[Semi-private room] Weekend and public holiday 120-minute dinner buffet (adults only)
¥ 7,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekend and public holiday 120-minute dinner buffet (adults only)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekend and public holiday 120-minute dinner buffet - Seniors (65 years and older)
¥ 6,300
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekend and public holiday 120-minute dinner buffet - Seniors (65 years and older)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekend and holiday 120-minute dinner buffet (Elementary school students)
¥ 3,500
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekend and holiday 120-minute dinner buffet (Elementary school students)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekend and public holiday 120-minute dinner buffet (ages 4-6)
¥ 2,000
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekend and public holiday 120-minute dinner buffet (ages 4-6)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Semi-private
Read more
[Semi-private room] Weekend and public holiday 120-minute dinner buffet (ages 0-3)
¥ 0
(Svc & tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
[Semi-private room] Weekend and public holiday 120-minute dinner buffet (ages 0-3)
Valid Dates
May 09 ~ Aug 07, Aug 17 ~ Aug 31
Days
Sa, Su, Hol
Meals
Dinner
Seat Category
Semi-private
Read more
Dinner-only birthday and anniversary plan
Add-on
Dinner-only birthday and anniversary plan
★Please select one plan only.
Limited-Quantity Restaurant Anniversary Plan (One Mini Cake per Group per Plan)
① Birthday Plan
② Members-Only Birthday Plan
③ Anniversary Plan (Wedding Anniversary)
¥ 0
(Svc & tax incl.)
-- Qty --
1
Add-on
Dinner-only birthday and anniversary plan
★Please select one plan only.
Limited-Quantity Restaurant Anniversary Plan (One Mini Cake per Group per Plan)
① Birthday Plan
② Members-Only Birthday Plan
③ Anniversary Plan (Wedding Anniversary)
① Birthday Plan
- For guests making a dinner buffet reservation in the month of their birthday
- Reservations must be made by 5:00 PM the day before, and please request the "Birthday Plan" when making your reservation.
- Receive a complimentary mini cake and photo!
② Members-Only Birthday Plan [CLUB ORIENTAL Member-Exclusive Benefit]
- Receive one complimentary toast drink (for up to four people).
- Choose from draft beer, red or white wine, sparkling wine, or a non-alcoholic cocktail (Ocean Blue or Sweet Lemonade).
③ Members-Only Anniversary Plan [CLUB ORIENTAL Member-Exclusive Benefit]
- For guests making a dinner buffet reservation in the month of their wedding anniversary
- Reservations must be made by 5:00 PM the day before, and please request the "Anniversary Plan" when making your reservation.
- Receive a complimentary mini cake, photo, and toast drink for both of you!
- Toast drink: Choose from draft beer, red or white wine, sparkling wine, or two non-alcoholic cocktails.
Fine Print
The plan is excluded during Golden Week, Obon, Christmas, and the New Year period.
Valid Dates
Jan 14 ~ May 01, May 07 ~ Aug 07, Aug 17 ~ Aug 31
Meals
Dinner
Order Limit
1 ~ 1
Read more
Alcohol-free drinks (self-service)
Add-on
Alcohol-free drinks 120 minutes limit
¥ 2,800
(Tax incl.)
-- Qty --
1
2
3
4
5
6
7
8
9
10
11
12
Add-on
Alcohol-free drinks 120 minutes limit
Valid Dates
~ Aug 31
Meals
Dinner
Read more
Requests
Visit History
-- Visit History --
First visit
Second visit
Third visit
Four or more visits
Question 1
Req
[Can be used from the day of use] Have you joined CLUB ORIENTAL? There is no joining fee or annual fee for CLUB ORIENTAL, and you can start using it immediately after registering. You can get 5% off at restaurants and receive other great deals. *Some items are excluded, such as plan products, limited-time products, cakes, bouquets, etc. When using the restaurant, please show the member screen to the staff.
Click here to join
*The Oriental Members Card membership system has ended, so please join here.
no
Already a member
Questions for [Semi-private room] Weekday unlimited dinner buffet (adults only)
Question 2
Req
こちらのメニューは個室ご希望のお客様のメニューとなります。
必ず、【半個室】個室料金(2~12名)¥2,000 のメニューも選択して下さい。
選択がない場合も2,000円の追加料金となりますのでご注意ください。
Questions for [Semi-private room] Weekday unlimited dinner buffet - Seniors (65 years and older)
Question 3
Req
This menu is for customers requesting a private room.
Please be sure to also select the menu for the [Semi-Private Room] Private Room (2-12 people) for ¥2,000.
Please note that a ¥2,000 surcharge will apply if this option is not selected.
Questions for [Semi-private room] Weekend and public holiday 120-minute dinner buffet (adults only)
Question 4
Req
This menu is for customers requesting a private room.
Please be sure to also select the menu for the [Semi-Private Room] Private Room (2-12 people) for ¥2,000.
Please note that a ¥2,000 surcharge will apply if this option is not selected.
Questions for [Semi-private room] Weekend and public holiday 120-minute dinner buffet - Seniors (65 years and older)
Question 5
Req
こちらのメニューは個室ご希望のお客様のメニューとなります。
必ず、【半個室】個室料金(2~12名)¥2,000 のメニューも選択して下さい。
選択がない場合も2,000円の追加料金となりますのでご注意ください。
Questions for Dinner-only birthday and anniversary plan
Question 6
Req
プランをひとつだけ選択してさい。会員限定プランの場合は要望欄に会員番号を入力してください。
Birthday Plan
Members-only birthday plan
Members-only anniversary plan
Question 7
Req
Please check the box after confirming the following items.
*This offer is available to customers whose birthdays or wedding anniversaries occur in the same month as the offer.
*Plates will only come with the default "Happy Birthday" or "Happy Anniversary" design; personalization is not possible.
*The timing of serving will be left to the discretion of our staff.
*For members-only plans, please enter your membership number in the request field. Please note that we will be unable to prepare your plate if this is not entered. We also ask that you present your membership QR code on the day of the offer.
*This offer is for in-store consumption only; take-out is not available.
*This offer cannot be combined with other plans.
*The mini cakes contain milk, soy, eggs, and wheat allergens.
*The photo is for illustrative purposes only.
Join here
*This is a different membership organization from Oriental Members.
Requests
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