The new series of Yamaguchi based on number 9 yeast. Of the 3 in the series, I liked this one the best. It is best on the second day as the residual CO2 in the bottle, although once a quite unique trademark of Kaze no Mori and Takacho has become increasingly trite in recent years and difficult to enjoy with food. Although very interesting, this is quite a departure from the balanced acidity and richness that I have grown to love about yamaguchi over the last 15 or years that I have Enjoyed them.