Highballs are very popular in Japan, so much so that you can buy a highball in a can at vending machines, train stations, etc. Indeed, when I toured the Yamazak

Highballs are very popular in Japan, so much so that you can buy a highball in a can at vending machines, train stations, etc. Indeed, when I toured the Yamazaki distillery a few years ago, they served Highballs to the guests. Best highball I've ever had.