Japanese alcoholic drink with a shochu base and flavored non-carbonated mixer.

There are many flavors of sours, such as:

Lemon, Lime, Grapefruit, Ume, Apple, and Calpis

Sours can be found at most any izakaya and nomiya and sometimes at bars. They are usually the cheapest drink on the menu. A good izakaya will give you a lemon, lime, or grapefruit to squeeze into your drink.

Sours are usually served in jyokki, but usually can be ordered in a plain glass. Compare and notice the difference between a chuuhai and a sour; carbonation and non-carbonation.