I just completed this last night and I loved it . The worldbuilding and overall tone kept my interest even though I didn ' t know what was going on half of the time . And while it certainly excels as a tonal , atmospheric piece , I find it difficult to express clearly what I thought went wrong with its story . Without even mentioning the cinematic way it presents itself , the tone and feeling of this show is unlike any other . Its overall feel does have some comparisons to Eureka 7 , but replaces the happy loveydovey innocence with mature character motivations influenced by a confusing , complex war . It replaces the awkward groovy , funky futurism for a more natural , refreshing , warm tropical vibe . That ' s only made deeper by a certain mysticism permeating this world ' s ancient history and traditions . That ' s something I never realized I wanted so badly out of anime and it ' s a shame that most anime don ' t usually go for this more expressive approach towards worldbuilding . It ' s given me a greater appreciation of what anime is capable of in terms of tone and feeling .