Technically not a chuhai but here you go! Choya, the world's biggest producer of umeshu (plum wine) is getting ready to release The CHOYA HIGH BALL. It's a RTD that's presumably just umeshu and soda, given the name.
They're using Nankobai to make the umeshu that goes into this one -- those are supposed to be the highest grade you can get! However they've also made it crisp and refreshing like a highball is supposed to be.
This one drops September 5, 7% abv so nothing to sneeze at either. Could be interesting to compare this to the other plum-flavored chuhais.
Whiskey Richard is the founder of nomunication.jp, and has been saying he has lived in Japan for ten years for the past four years. He enjoys drinking basically anything except straight-up Campari.