There actually is a lot of satanic imagery, symbolism and themes that I have long since believed for years that Japan post WW2 is an experiment. Anime being one small part of it (I also believe how the Japanese economic boom-bust phenomenon was another part of the experiment)... Some people have pushed the idea of cool Japan for decades and it's allowed their anime, manga, etc. Go into some pretty weird shit

Lolis (sexualisation of underage girls), the beatiality both in some generic shows and in porn, transhumanism, sci-fi dystopia (post humanism, i.e so much anime looking at the deconstruction of the human), also extends to a lot of fantasy. And beyond there's so many different genres that still present a sense of authoritarian heirarchy and many stories revolve around characters working to advance up or fit in to the system (could be a loose connection to the beast system). The ones who reject the system are often villains

Speaking of villains, someone in another post bright to my attention the scores of luciferian-archetypal villains in Japanese pop media. Well known examples would be Kefka, Dio are just a handful that I can remember off the top of my head atm. These are characters that are oddly celebrated and have legions of fans

Must people I'm guessing haven't thought about it enough to see the connections because anime and all that dress it up very well