I've really enjoyed the entire sound-track that matched each scene that gave me the emotions for each episode. I love the fact that every ending starts off with a beautiful angelic song that sounds so good. My only problem with them were the signalling at the end of the episode but the dramatic entry did it so well. The sound effects were a problem because of it's high frequencies but, they sounded okay but were merely over used in the entire series. Most of the sound-track was overly used and repetitive depending on the emotion per scene. You will be hearing them frequently a lot and it will get irritated quickly.
I didn't partially liked the scenery choose and the characters development. Each character had a specific avenge plot to characterize who they are as a character but, most didn't really got the completion of their avenge and it went to destruction near the finale end of the entire series. I wish there was more for the "One Hundred and One guild" but, they're wasn't and so for the Dorrissian. They're wasn't enough memories or messages put for the main characters like H-Huen or Q-Vier. The term, "Blitzendegen" appears a lot after their salute to their superiors and the term doesn't make sense. I'm very fond by the mass use of the "Adults hatred" from the children in the first season that wasn't placed properly in the second season. I thought there was going to be a running gag along with that to prove a point. For the beginning of the series, the just spend their time in high-school like any other ordinary Japanese' animation. There could've been more on the JIOR scientist and why they created the mecha's that fused with the OS. That could've brought some attention to the series. Even though it's a dramatic starting point but, still bring some missing clarity to the series. I really did like Haruto's growth of a character but some character's death in the series are promising but never outstanding. The other is the runes and how their memory is fading while they're not following any instructions or understanding who the OS truly is. They're really power creatures but I know the scientists just want weaponized creatures to control the mecha in large amount of energy but, how did they actually aligned in the first place?! Was that they're secret of having a neutrality between humans but why did they wanted to fight in a war again to get out of associating with the humans? Was it actually the Magius fault for connecting with the human's in the first place to blame it on others. Was Haruto's character really displaying how the Magius was acting and the "A Hundred and One guild" was behaving? Why didn't they captured the Valvraves which they knew about them to explain the situation more carefully? I love the series so much when it comes to viewing the world and the term "Unveiling to the world" that's the best conclusion for the series. "Avenging, Unveiling, Promising, Protecting" were a few main words that the series wanted the audience to know. I cried at many deaths but besides (Liesettotes/Marie) they weren't that interesting.
