I got this from the vending machine in front of the place I work at. It’s Ultraman Cider! There are many different designs for the cans, each mimicking a specific Ultraman’s costume.
On the back of the can is info on that particular Ultraman.
The flavour was the normal Japanese cider taste, sweet and candy like. Maybe it’s for some anniversary or something, or maybe jsut to sell more cans.