Details: Couldn’t find an English web site, but found the corporate website for the parent company that makes this. It’s mostly meant for investors, but it is the company that produces this product. Here it is: https://www.kirinholdings.co.jp/english/
It may be hard to tell from the picture above but that is actually a somewhat shorter bottle, about two-thirds the height of a standard twenty ounce soft drink bottle. This matters because this particular bottle is the low sugar variety while the taller bottle is the sweetened, sugary version. What’s interesting is that both varieties of this brand’s milk tea actually hold the same amount of tea. One is simply taller and more rectangular while the unsweetened version is shorter, fatter, and more circular in shape.
Of course, if you can read Japanese, then none of this is an issue because you can just read the label. For those of us that cannot, the small round bottle is unsweetened while the taller, box-like bottle is very sweet.
As for the taste of the unsweetened bottle, it’s not bad. Again, there’s little to no sugar, so your just getting the taste of the milk and tea which is not bad.
Overall, I’d buy this again.