@attinat
My guess is that spirits allowed the other healer to be immune to the hero's charms or something and that Kaido's resistant because he's OP or has some sort of equipment for it.
@NewbArtist I didn't see an /s tag, so I thought you might not be aware that this is an anthology and that the first story was written by a different author than the second. This story's definitely better than the first though.
This is the first time Nema's actually scared of an animal, no? Kinda strange to see her afraid of boar piglets considering how nicely and gently animals seem to treat her due to her powers.