"Oh?"
Commoners and slaves were indeed obliged to address noblemen as "milord." Therefore, as a "human" and de facto slave, by law, Konrad should have referred to Anselm as "milord."
"You've already fallen to this state, and instead of begging for mercy and release, you want me to call you…milord? I don't know if I should feel impressed or amused."
"Did I say something wrong? Even in evil, you should not lose decorum. Since I am a lord and you a slave, it is right and proper for you to refer to me as such."
Anselm replied while still not sparing Konrad a glance.
"Wrong, very wrong. First, you are not a lord. You would need to at least be at the Grand Knight or Priest Ranks for that.
Second, what makes you think I'm not a demon lord in disguise."
"Humph!"
