Some smart person in marketing must have figured out the low carb craze. Then they married zero carbs with Chu-hi, which is made of Shochu, a Korean cheap alcohol. Then they made it twice as strong as beer. Unsatisfied with just one flavor they started in on lychee and yes, mango.
The result? A quick cheap drunk on an empty stomach that reminds me of my days in Taiwan, when I ate my first mango. Japan is Awesome!