I purchased a seasonal Yamamoto Sambongi and started with this one. It has a moderate sweetness, a little sourness and bitterness, but it is crisp and easy to drink. I am looking forward to comparing Doki-Doki and Sunshine Yellow!
The sweet Koshihikari flavor is slightly carbonated for a refreshing taste. I've heard rumors of the Kangiku Discovery Series, and I look forward to the others!
Found at a roadside station. I bought three bottles, this is the first one. It is a sweet daiginjo. It spreads on the palate, but the aftertaste is not bitter. I think I found a delicious sake!