Well to begin with, this really is a very underrated comedy/parody show. This kind of shows doesn't get much praises due to various reasons. First of all new age comedy shows tend to have have nonsensical jokes and fanservices in them which this show certainly lacks. The other reason being, there are only 3 episodes in this show. It could have gotten more praise if it would have followed the whole manga and completed the series, but unfortunately it didn't happen and neither there is any chance of such happenings in the future. But anyway, this was a really nice watch for me. Those 20-24minutes were surely laughable. And the most intriguing parts are when you see leaders of different countries waging wars and deciding their victories through Mahjong. If you have some 25 minutes in your busy life, do watch this and believe me you will not be disappointed.
Thanks for taking the time to read.