Plum wine 梅酒
A bar offers this service.
1 hour 1010 yen
2 hours 1680 yen
I haven’t been there yet, but I would like to go by the end of this month.
Does anyone want to go to the bar with me?

Plum 梅 Ume
Plum wine is called Umeshu 梅酒 in Japanese.

Bar name
Puedo Bar (プエドバル Puedobaru)

Note
Making a reservation is not necessary.
Not only a group but also one person is also accepted to enter the bar.
Cover charge includes wakame (sea vegetable) is 380 yen per person.
8% Tax is not included in the prices.
Last call for drinks will occur with 10 minutes prior.
When you order this, they hope you to order some foods. It is not their rule though.

Business hours
11:00am – 3:00pm Lunch menu
5:00pm – 11:00pm Dinner menu
Sunday and national holiday are closed.
You should go there after 5:00pm, if you would like the All-You-Can-Drink.
August 14 – 16, 2017 are closed, because of their summer holiday.

Memo
They offer many kinds of food like a restaurant.
In total, 2600 yen/person would be suitable for the 1-hour-all-you-can-drink and 2 foods.

Website
https://r.gnavi.co.jp/5fdf958k0000/

https://tabelog.com/tokyo/A1324/A132402/13181295/

Google Maps