Browsing Yamanaka Frante I found a whole aisle full of Chuhai. Chuhai is an alcoholic drink, usually made from vodka and juice or soda, the traditional type is made with shochu mixed with lemon, from which it gets the name chuhai - a mixture of shochu and highball.
A whole variety of flavours were packed into the shelves - peach, grapefruit, lemon, plum, pineapple, orange, grape, mango, apple, and the list goes on.
I chose one that interestingly had a soft drink mixed with it - Calpis - a kind of yoghurt flavoured uncarbonated drink. Because this Calpis has 5% Vodka mixed in, it is called Calpis Sour.
The can itself contains 350ml. On a further inspection of the ingredients I found that there is also filtered water, hence the image of the ice on the bottom of the can, I guess it is meant to be a similar feeling to "on the rocks".
When I opened the can I couldn't actually smell any alcohol, only the faintly sweet lemon-y smell of regular Calpis. The first taste is quite like regular calpis, smooth, sweet, lemony, with hints of yoghurt, but right at the end the strength of the alcohol kicks in, and I don't think it is sour, but it is quite strong and rather unpleasant.
The flavour emerges on the top of my mouth and the middle of my tongue, the real strength of the vodka and the lemon notes of the Calpis. I feel my cheeks going warm, and extending down my throat. This is strong for me, but I am not sure why. I usually drink mixed drinks, as in Vodka and juice, usually around 5%, so I can't really fathom why this rubs me the wrong way.
Maybe Japanese Vodka has a different taste to what I am used to. I definitely wouldn't buy this again, mostly because of the strong taste of alcohol at the end. It is not a drink that is mixed well, rather it is soft drink at the beginning and alcohol at the end. I also don't get any notion of the 'sour' mentioned in the name of the drink.
This wasn't even good as a novelty drink, though I am sure some people out there enjoy it. Sadly I am not one of them.