Tonight's Sake is Ginjo 'Mansaku". Same as a champagne when I opened the stopper, it sounds "Pon"

Tonight's Sake is Ginjo 'Mansaku". Same as a champagne when I opened the stopper, it sounds "Pon" l, and the feeling that the tongue gets numb slightly was due to micro carbonic acid. It is since Saturday to open the stopper, but micro carbonic acid still remained.
The color is slightly yellowish, with little scent. Because of micro carbonic acid, the aftertaste feels like almost raw sake.