I wonder if the mangaka is fond of scotch (whisky)? Or perhaps Scotland in general? I am fairly certain that the name of that moon country mentioned on p. 13 is Laphroaig, though without seeing the official English, I suppose that the official romanization may have been set as something else...
I have a 50/50 guess that the Oracle of the Demon Lord will be Makoto himself and Noa is the Demon Lord, I'm probably wrong, but I dunno. Also their classmate, the Hero probably will clash with Makoto in the future.