I could tell the instant that they showed the fatass that he was evil as being fat is a common trope to show that someone is evil/bad natured. Anyway, I hope he experiences a world of pain for harming 2 lolis as lolis are to be admired not harmed!
From how how it appears from this chapter, it seems like a declaration of war by the Ilstin Republic against the Esfort kingdom and empire and an open rebellion by Marquis Corgino.
I have come to that conclusion by using common sense and logic.
Even if the grandfather dislikes his son in law, he will be angry at the employee for being a complete failure of a merchant
Merchants go off trust and mutual benefit, if only one merchant in a deal is making a profit from an enterprise and the other party isn't then trust in them will...