The story is practically nonexistent. It started out well, with some kind of premise (albeit a generic one) and characters that had potential for development. Sadly, this was all soon abandoned for the sake of... idunno. Throwing in more random themes and characters I guess?
It is perhaps for this reason that the story never really comes together and just jumps from one "dramatic" incident to another. Dozens of aspects are never explained or explored in detail, and you're left guessing about everything for pretty much the entirety of the series.
As if that wasn't disappointing enough, the characters are also pretty dull and come with little backstory (most of which is repeated over and over again) and even lesser character development. The most interesting character is probably Ichinose Guren (though maybe because Nakamura Yuuichi does a great job at making him come to life), who's not even one of the protagonists.
Additional talented seiyuus (Hayami Saori, Irino Miyu, Daisuke Ono, etc.) also come into the picture, but that hardly makes this show get out of the dead end it's in.
While looking around for other redeeming features, it's always good to consider art and music, but even this kind of fails here. The OST is completely unremarkable and even the English opening does little to spice things up. The art, of course, is nice, but one should expect nothing less from a show that aired in 2015. Additionally, the color palette seemed to be a bit lacking in variety for my taste, and there's only so many scenes of post-apocalyptic Tokyo I can take before getting bored.
Overall, "Seraph of the End" turned out to be "Seraph of Disappointment", because I simply couldn't wait for this show to end. Even if it finally got remotely interesting at the end of episode 10, it quickly turned plain weird and had little time left to redeem itself for the total flatness it made me endure for almost six hours.
If you're like me and your love and curiosity for anime is greater than everything else (hence making you endure even the most humdrum of series simply to see what they're about and why people talk about them so much), then go ahead and get into this mess... but be warned that, when it's over, you'll probably feel just as bored (if not more so) as you were before watching it.
