Hata probably throw this out first so he can make 100 chapter fluff on the same month without worry
remember how Hayate run for around 10 year but in story it's more or less just a year?
the dad looks like a real good person, so I think there something with the Church that makes him can't marry Aisha than it's because of their family.
Come on, the church give her medicine directly, you know there is something with her and the church.
Tho my first guess was it's because if...
I don't want her to be Emperor Queen anymore, I want Sir Paul to have her own harem with 3 concubine and the emperor.
THE CONCUBINE IS SO LOVABLE, I DON'T WANT ANYTHING BAD HAPPEN TO THEM.
PLEASE LET SIR PAUL RAISE IN POWER ABOVE THE EMPEROR--
which I know is impossible, but hey, I can dream.
She was probably a nympho, fucking everyone and everything, then got married to some sort of Japanese God or Mythical creature. Or maybe Incubus.
Or
She is a pure shrine maiden and got married to a succubus.
or
the girl we see in the classroom is her daughter when she first discover her...