@Huh!!! Why am I here????😰😰😖😖 ML is a demon. Logically speaking, that's what demons do. 

The Duke is human yet acts like a demon. ML or no ML, a demon is a demon. 

The Duke ordered the kill of the pimp by using miller. Erwar says he leaves the parties before the orgies actually begin. There are spoilers of the Duke doing worse but I won't spoil. 

It's common sense at this point to know that the Duke is as much as the devil himself . A demon acting like a demon isn't new, a human acting as one is worse. 

And hello? The demon was "sent" to curse Erwar. It's literally his job to cause Erwar pain until Erwar redeems himself.

@Huh!!! Why am I here????😰😰😖😖 What are you talking about? Do you think everyone at all those parties consented? Do you know how many are bring raped and drugged? 

Do you think even miller is consenting? 

Do you know how many people the Duke has killed? 

It's easy for him to kill anyone surrounding Erwar and you're saying he's better than the devil?