From Homulily's familiars and Homura's devil costume, this is supposed to be the fake world that Homura made at the end of Rebellion. If that's the case, then why didn't Homura just made the Kebab grill like with the old turkish guy, instead of just buying it?
Honestly it might be easier to just magic up big bucks and buy the thing, though Homura looked like she was suffering when lugging that around.
Besides, I don't think there's much logic in this doujin to begin with.