Review Detail of MM1RO in The Devil Butler

Story started okay. Nothing new in terms of concept and genre. It has the potential to be (at least) a mediocre/go to read for me. However, it suddenly gone downhill after selling a forgotten ancient formation to one of the 7 great clan(not sure about the proper term, didn't bother). The story development is all over the place, it feels like those novel adapted to manhua while omitting a lot of details (not sure if this was adapted since I can't find a novel with the same title). This is an anti-hero story, so I expected him to be prideful NOT stupid. Every move, argument, or negotiation ends up with "yOu aRe NoT qUaLiFiEd" lines. The one that annoyed me the most was that he changed plans halfway just to prove that the small Lou clan will be a supermegadupergigatera clan in the future. And this happened because of small provocation from a descendant of the major clan that they're allied/in-business with.