It is not the usual sweet yuzu sake, but a mature yuzu sake that you can taste the bitterness of the yuzu peel. You can also taste the bitterness of the yuzu. How many times are you going to say "yuzu-shu"?
This is the one I bought when I went to visit Asahi Shuzo. It was a Corona disaster, but I was happy to taste it. They also gave me a sticker for Asahiyama!