The demon god, huh? Those guys that attacked with their golems in chapter 58 were also followers of the demon god. Back then,
I wondered if that demon god could become our first arch enemy and now it's the second time it is mentionned.
So are we going towards a direct confrontation against those followers and maybe the demon god itself in the (far?) future? Our three S rank masters have no equals in the world, even the demon king isn't a problem for them, so a demon god could be the first real threat we might see...