@PhoenixStriker5251 the fact that the main character doesn't care is exactly the problem. The main character barely even cares about the demon queen, why should we care about the high level conflicts between the human king and his traitorous allies? It's just standard fantasy politics. The human king being turned into a mindless cannibal monster and now being puppeted by a different, more evil monster, is so much window dressing.
One bad guy with minor ties to the protagonist has been replaced by a new set of bad guys who are even less connected to the protagonist. Hiro doesn't even want peace, he wants to read and eat. If the newcbad guys are unrelated to him and he doesn't even know about them, why should he care about the fate of the king? Why should WE care?
More than three quarters of the chapter is about characters who are unimportant. If Hiro was actively had a reason to fight them as opposed to simply being a ferry service to rescue the demon king, it might be interesting to see the human king being backstabbed. But the author has faffed about making no-one in story care about the king. Does anyone even care that he is now a puppet and there are different evil guys scheming to do evil stuff?