Purchased at supermarket.
I found it a little bitter without fruity taste.
I heard there is a sparkling version, so I will add some carbonation and give it a try.
Okunomatsu Shuzo Co. repeats Okunomatsu, Junmai Daiginjo Sparkling
Not that there was anything special about it, but bubbles.
It's sold at the Seiyu in the back anyway.
It doesn't have the cap-blowing intensity of Champagne or Cava, but it has a delicate and long-lasting carbonation, which is the result of the second fermentation in the bottle.