It’s a Flanders-style red ale aged for an incredible four years in Spanish Rioja red wine barrels.

From Don Quixote - Lost Horizon Farm -German Beer Bart BAKU-YA-

If a bartender at a regular bar—not even a beer bar—quietly served me this while I was a little tipsy, I can totally imagine many people saying, “Oh, a plum-shiso vodka soda? Nice and refreshing!” That’s the kind of beer this is.
Yes, it’s genuinely a beer (￣▽￣). Anyone handed this by a bartender who simply said “Here’s your beer,” without any explanation, would probably hesitate and think, “Uh… I ordered a beer, though…”