If you have ever seen the Chaika face meme, this is the anime where it came from. As a given, she is cute.
And, the show delivers on its moe girls and adds extra trashy elements. The episodes follow action shonen format where "group meets people" of the week mixed with a harem ( loli dragon, step-sister/training partner, and Chaika). As they meet people, you develop characters, rehash the story of the Great War, and uncover the mystery of Chaika. It was totally predictable. Spoilers. Chaika was a safety mechanism to revive the dead king. Then through the power of friendship, the group defeats him.
Yes. There are themes of post-war reconstruction and struggles of a society trying to rebuild their lives economically and socially. It's a good message and all, but I am glad they did not take it seriously. The character all know the great war was terrible, but they continue to solve all out problems by fighting first asking questions later. It is worth it to see Chaika shooting her sniper rifle. Totes adorbs.
Overall, if you are looking to confirm if the Chaika face is meme worthy, this is great