In episode 2 of the anime, Head Maid says she claimed that the Demon King (under the guise of the Crimson Scholar) was a noble's child visiting from the Central Nations. However, in episode 9, Big Sister Maid (under the guise of the Crimson Scholar) claims that she was born a serf. How would the two stories be reconciled? Would they claim the first one to be another deception to hide the potential uncertainty that accepting a born serf's advice be prone to? Or would they tie the two together, saying that the Crimson Scholar was born a serf, but adopted into a noble family?
There's also the question of what happens if they make known that the Crimson Scholar is actually a demon, the Demon King, no less. Wouldn't this invalidate Older Sister Maid's speech about being human in the public eye?