The sound-tracks used in this anime : flawless.
The slight amounts of fan-service fused with srs bsns : flawless.
Simon the digger backstory: Flawless.
If you have time, watch this anime.
When I watched the first few episodes [1~3] it seemed like it was going to be bleh, boring, etc...
However, upon continuing the series: once you get to ep 27 and see how it ends.
It was all worth it, it is without a doubt, the BEST anime made.
