@roachgod from what I remember mitsuba didn't kill anyone though he is a spirit and dead(which I'm pretty sure kou has already accepted and come to terms with) he's less dangerous compared to hanako
@Red225 well we know only the king can't detect magic bc he's extremely blessed with holy powers or however it's called. The story hasn't said anything about the workers being unable to detect it. It could be the reason he's punishing them is because they failed to notice how badly her condition...