Its weird how anos has so many emotions. Every demon has pride. It's a bit unreasonable to see Anos frustrated at being ignored by Cid. Anos didn't really understand other people's feelings so he should only be confused by Cid's attitude but not pay to much attention about it. It was also strange how Anos refused to enter the academy. The academy was a gathering place for information so it didn't make sense for Anos to avoid it. The most important thing is that Anos always takes the role of king. In OG, even after 1 month after his reincarnation, Anos continues to be on the lookout for sneaky gods, prankster spirits, and human attacks that would harm the demon race. (translate)
im a little confused about how anos I acting with the other characters in the story. I might be wrong because I watched the anime a while ago but anos never really tried to hide that he was the demon king. I understand that he wants to find out more about the world but him hiding what he can do was never something he has done before so I was wondering why would do it now. Anyway the story is good and I plan on reading it just hope you can answer the question.