The animation of this anime is pretty much one of the best I have ever seen. I kind of thought that the lead character would turn into a demon himself because of his sister due to the fact that most of the anime that I have already watched are by far the main character is unique or unintentionally evil and therefore tries to prove themselves by the end of the series. I kinda thought that this anime is a mix between Shingeki no Kyojin, Ao no Exorcist and Sousei no Onmyouji. But all in all, this is a must watch.
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