Wow that was actually...good. Bare standard animation style and goofy beggining ended up in a very engaging final few episodes. People will say there should have been more episodes but I would disagree. Its better to leave things to imagination rather than explaining a concept done a thousand times. Keep the surprising bits and leave out the rest. The one thing I would like to have seen is what got her brother to start thinking the way he did. But you don't really need to know that, and its interesting to try and guess what would lead him down that path of thought. Did he happen to see a bunch of killing on his expeditions and the old woman took advantage of him then?I wish more anime and drama shows in general, would use this short format. There are really only a few key moments in a series where character and plot are defiined and the rest is just repetition. This is like eating the top of a muffin. Sure there is moree there but are you really missing out? I would have skipped this if it had been more than 10 episodes and I had to watch them killl expendable monster #128. Each eppisode was necesary for the story to advance sensibly, like they had a long crappy series, hand picked the important episodes and ended up with a good series. In the spirit of the series I end thing here.

There was a ton of depth in this series but thanks to its brevity there was little time to build any sort of a relationship with any of the characters. In the end I enjoyed the story but found its telling to be less then satisfying. Had the series been even twelve episodes rather than six then they could get into the details of the background and the lost technology rather than just telling you about it. The best example of this is the quick change of sides the twin androids undertook when the professor dies. With some length this could have been a weighty and heated undertaking, but rather it was more along the lines of "hey they are on our side now" "cool". I have not read the manga but from what I can see it was much lengthier and the anime producers decided to cram pack it into very few episodes.