That page 4 spooked me for a second 😦, at first I thought it was Chiharu but I guess it is not... Unless she got super curious about demons that she wanted to be one or... 🙄
@Yunefia she did get a demon illness and it was treated, as a side affect she is slightly less human now. At the time the only effect was that her hair changed back to its original color, but it might be slowly turning her into a half demon. Example the other demons eyes are black, but she still has the whites of her eyes.
@Septem Yeah, I also remembered after posting that Merii mentioned that she may not be human anymore. But I doubt that's Chiharu as the baby also has similar tentacles as the adult(?). But who knows, it still could be that she got Merii's traits after all that. 😗
Edit: The black eyes only happens when they're in their battle forms.
@Boomthorkell Are you sure you're not talking about future chapters? As far as I recall there's only been one family which we've seen earlier (Chapter 48), but that lady has wings on her back, and this lady got tentacles.