Knightsire

I understand his behavior to be rude or antisocial, but monster is a bit harsh. He is baking bread and hasn't done anything outrageous yet.

What if he was just ignoring them for one reason or another?

Yes…organ meat is bad for gout also.

A good amount of the food dishes in this novel sound disgusting to me, but then I am not a foodie nor do I enjoy the cuisine so I just gloss over most of it.

I think the story already implies this…

So Lith gave relief to the restaurant owner in the form of that goon's bank account balance, but then he has such disdain for the other customers who tried to leave without getting extorted for one year's worth of savings and calls them "sheep". If any of those customers had his power, I imagine the situation would have played out differently. Does he not understand this, or has he become the rich young master trope?

In order to call it evil, you must have some idea about what morality is and it seems out of place here since this world is very much survival of the fittest and might make right. So why would she even ask this question? The impression I got from the way these supreme beings behave is that they don't really possess this perspective on morality and perhaps not even look at it that way...unless they read the MC's mind and learned about this from his origin world's point of view somehow.

How sad...so they don't consider him as a lover or partner?

I disagree. From my standpoint, they crossed a line and they became his lovers and are now a part of his harem. Family or not, they are his women. If the story decides that this is not the case, then the first several dozen chapters that laid this groundwork undermines any character investment made by readers, in my opinion. This Arya is also several steps down from the characters of Lilith and Lucy. There has been no effort to make her likeable, introduce her backstory, and/or give reasons why she is a good partner for Lith. She is brash, lazy, entitled, back-stabbing wastrel who hasn't really done much to earn a place by his side.

The only thing Arya has done thus far is beat up the vice principal because of a lack of self-control and stealing his flags in the trial. She obviously has no respect for anyone but herself because she has the backing of the dragon race supreme. Based on what happened in the story thus far, she would absolutely take advantage of Lith and he would be lesser for it.