Oh boy that's a difficult question Σ(゚口゚;)//
First of all... Blue Exorcist is a bit different for me. When I started reading the manga and watching the anime I only cared for one certain character...
I can say that changed a lot after entering the fandom. I see so many good art of all of the characters that I started to pay attention on everyone.
But I will always be an Arthur fan idk what could happen that would change my mind. So his plot and his panels always get the most attention from me. And the demon kings of course.
Things I would change... SEASON ONE OF THE ANIME.
Jesus Christ what a bullshit. (#`д´)ノ
People started hating Arthur because of that trash and they also represented him as a fucking joke on that fire engine. He is a Paladin! How ridiculous.
I also really don't like the art style. A lot of people hating season 3 style but in my opinion it's so much better. I want to forget season one tbh.
If I go deeper into the whole story and look at the plot I am always impressed how Kato managed all that. I have a huge respect for her creations. Everything happens out of a reason and I really like how the story and the characters evolve. It's well written and when I am sure what will happens next everything went completely different.
BUT THERE IS ONE THING THAT I WOULD ERASE FROM ALL THE MANGA AND THE PLOT AND FROM THE WHOLE WORLD. NO I AM NOT TALKING ABOUT THIS-
Kato I hate you for this (no I love you but this was NOT necessary!) The chapter was uploaded on his birthday how could you?!
Also- Lund and Strom are some stupid NPCs... Not fair!
I will never understand it. I will also not try to understand it. I was so shocked when I red it I want to pretend this never happened. Kato... please take more care of the Paladins they are not a disposable item.
This woman will end me I am sure.