It was fire-aged.
There happened to be a former brewer there, and we tasted the wine while listening to him talk about various things.
It was so delicious that I bought it after I returned home. There was no fire-brewed one, though.
This is the first time I drank Kurei.
I think some of Kabi's adjustments were too good, but it was too delicious, so I scraped it up for home later lol.