This is simply one of the most inventive bars in Tokyo. When Gen Yamamoto opened back in 2013, it was one of the first bars in the world offering omakase cocktails. In other words, there's no menu to order from here. You simply choose a four- or six- or seven-drink tasting set (¥4,800, ¥6,900, ¥7,800, respectively). If you've ever ordered a 'bartender's choice' menu, there's a good chance the concept here was the inspiration behind it.
Yamamoto will serve the cocktails one at a time, explaining the origins of each ingredient (in English as well as Japanese). The whole experience lasts about 90 minutes. Don't worry about getting too tipsy – the drinks here are typically smaller and less alcoholic than what you'll find at most bars. But rest assured, you'll be getting value for money. The menu is constantly changing according to what's in season, so no two visits are likely to be the same...