I had to stop reading it. Before starting to read this novel I knew (with the tags) that the MC will be heartless and I thought he would have a bottom-line which was the case the ~90 first chapters.. but after, the bottom-line is totally non-existant to the point that he is willing to abuse of an innocent little girl and then to let her die like a dog in a city of murderers with her aunt (who lives there. She is not a good person at all)...
At the beginning I began to read it because I wanted to know and experience new things like an Evil MC.
I thought that the author was good and the story was original.
But now, the MC has not even the least bit of basic moral value left, ruthless to the extrem and cold hearted (more than ever before). What I see is an author which is trying to make a really dark story but seems to forget his own moral and go too much in the exprem to the point of making the MC do things that could have been avoided (a long time before) just because he wants a heartless MC.
Treating mortals like grass is okay (in this novel because this is an evil MC) but abusing of them to gain massive benefits and then to abandon them in the nest of their enemy for the reason : "Magus advocate fair transactions." makes me really sick of the MC and of the author. What makes me even more sick is that this is what happened to an innocent girl (mortal and ~12 years old) whose grandfather just died because the MC was too lazy to heal him.