Oh. I was hoping the first chapter would get to the plot, but this is just the exposition.
Anyway, I'm really surprised that the kingdom has never reviewed the black Knights leadership or performance before. I mean these are the guys protecting literally everyone from demons (I'm assuming the worst of the worst monsters in this setting). They should be reviewed frequently to ensure their only (assuming; at least first line) defense isn't failing. Also what type of asshole, greedy, refuses to fight, corrupt leader tells their most powerful soldier to go die? That one doesn't even make sense. He's a criminal (giving you full control over him) and can one shot demons. Abuse your power over him and keep him under your control (that makes sense for a no good slimy captain), but why eat up and overwork (to exhaustion) and tell to "go die" the one guy that can defeat demons in your entire army (like had he not been there the captains would have had to fight (and probably lose) and they'd all die).