Arella was, in one word, exhausted.
It had been another few days, and all she had been doing was studying on demons, preparing for her coronation, and having discussions with the generals about the strangers. She had not gotten any free time to even contact her family back in the angel realm.
However, she had so much to do, and so little time.
Originally the planning of a queen's coronation was done by the king's mother, as Arella had read. However, no one went out of their way to mention anything about his mother, and Arella had not seen the use to ask about it.
She would figure it out at some point anyway.
The demon king was also very helpful in anything she wanted to know. He answered all of her questions, and had some books delivered to her in areas he could not explain to her well.