It kind of bothers me how often they're bowing in this (and other euorpean-ish setting isekai comics) comic, It just feels out of place; like if someone were to used internet slang in this story, it equally doesn't suit the setting.
Though maybe ye-olden europeans were big on bowing as well, and I'm just wrong on this?
Speaking of countries and other cultures; is their an isekai that has someone from a country other than Japan? Of all the ones I've read, I don't think I can think of one time there has been someone who was isekai'd that isn't japanese.
Not saying that they have to be the MC, just that I can't think of any character in an isekai that's non-japanese.