I don't get this one.
Especially one character, the prostitute.
Her story is literally
-peasant daughter, but noble falls in love with her and wants to marry her
-she refuses
-noble does not give up and continues to try to get her affection
-she fears she causes trouble for her father
-moves out of her father's home and becomes a whore in a city controlled by the noble
-literally whores herself out for everyone that pays for it except that one noble guy
-noble still wants her despite the shit she is pulling
-for some reason the brothel and all it's inhabitants are "we gotta protect this girl from the noble that controls the literal city we live in regardless of the harm it will cause us", obviously she still has to whore herself out with the exception of the noble that controls our city
-noble literally goes insane over how much he desires the girl that literally fucks everyone for money except him who wants to marry her to the point her turns to demons help and becomes a monster
-noble became a demon/monster over the insanity the whore caused in him so now MC can rightfully slay the noble

Oh yeah what a story the poor girl, you had the option to leave the peasant life and become the legal wife of the local lord and allow your family to live a good life, but you just didn't like the lord so you choose to be a whore and now we are supposed to feel sad for you and pity you.