It is a very sweet drink.
It is like a lactic acid bacteria drink for adults.
It is a very sweet sake with a solid body and a satisfying feeling.
The sweetness reminded me a little of mirin (sweet cooking rice wine).
This sake is like an adult cider with a great effervescence.
It has no alcohol taste at all, and even those who do not like sake can enjoy drinking it. (It may be too much like juice for those who must have a sense of alcohol.)
It is very easy to drink and very dangerous.
By the way, be careful when opening the bottle, because if you don't do it slowly and carefully, the bubbles will be so strong that they will overflow!
The bubbles are that strong.