I don't think it was really out of nowhere since in an earlier chapter another dragon showed up after sensing the "outsider" and it was established at that time that there are 4 such dragons.A dragon, huh? Did not see that coming. I mean at least we get some kind of foreshadowing with the demon girl, but this came out of nowhere. Blondie being the most defensive against abandoning Aisha was a nice little touch to redeeming his character though.