This Review Contains Spoilers Read at your own Risk
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Season 1 really didn't meet my needs. The movies were phenomenal but also piqued.
Quality of the Animation
The CGI is Visually pleasing to watch i give it that. If you don't know what CGI is, it means Camera Generated Imagery. Here's some examples of how the CGI is shown in the anime.


It was visually pleasing to watch. The CGI in entertainment arc was lit. What's there to hate about Visually pleasing animes? I can tell Ufotable put much thought and effort into this i can tell and maybe you can tell by the animations. The fights are amazing.
Character Development
Ufotable has great animation quality but what about Character development? The character development shown in this season makes me have a even more keen interest in this anime, not only the animations but the character devolpment. In a later episode in the series we find out that Tengen had siblings, but they died being a shinobi. We also get to see both demon siblings backstory Gyutaro A Unfortunate Child who was hated because of his appearance and known as a disgrace to the entertainment district, Ume a young girl with a stunning appearance. Gyutaro wishes to protect her sister and be together forever but one unfortunate day Gyutaro comes from work to see her little sister burned alive because she had stabbed someones eye out. Then we get to see none other than Doma an upper moon six at that time had given Daki And Gyutaro a chance to become demon. In my opinion this series has done great with character development in general.
Comparing Both The Manga And Anime
The anime is done very well but the manga is way better. This also shows why you should never derive from just the manga. Theres some anime exclusive scenes that never showed up in the manga. Ufotable also corrected some minor mistakes that were in the manga.
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Conclusion
The CGI and Character development is one of the greatest aspects of this anime, They also include one of the most Anime exclusive content its really worth watching In my opinion. I'm expecting even more from this series in the future. This series might be overrated but it really is Phenomenal when it comes to the quality and Performance put into this is Amazing. Season 2 Tops Both Season 1 and The Mugen Train Movie!