I forgot to say thank you for your feedback! Sorry, and know that every comment is very appreciated

They all kinda act like the other nations are pretty new to them.

Yep, yep. At least I think Germany seemed to know Austria when he want to "anschluss" him, and he talks a little to Finland in some early strip... I guess it's also because it's easier for the author to introduce the characters that way?

Hehe, I may have to add booknerdy!Ludwig to my headcanon soon