I wasn't expecting it, but it wasn't that bad. Like the Inano no Dew that I drank before, it is not brewed by the brewery (probably), but the taste is not to be underestimated. It reminded me of Akirika's Chiaki, though not quite the same. I went to the front of the brewery, but it had the name of another company on it, so I guess they really don't brew their own sake.
This one seems to be made by Meijo Brewery.