Ch34,p11. Minagi's assassination job had been called off because the person who hired them died, so Kail thought that the chain had broken there. It makes sense that he'd stop worrying about Eldrand getting offed after that.
P17.
As the EX boss, if there were any monsters left in the Demon Lord's castle, it stands to reason that she had control over them.
In-story, it'd be great if she and the protagonist's party take out the Demon Lord, and then she just walks up and sits on the throne after he dies.
"Hey. So...