Foreign main character
Anime
One or more of the main characters in this anime were not born in Japan (implying that Japan even exists in the universe the anime is set in), but were born in Earth (sorry, aliens, not gonna include you here).

TV, 2023,
24 eps
Me:-
Author:10
Thorfinn is still Icelandic (from Iceland), and Einar is Br'ish m8, wanna eat some fish and chips oi? Ye got a loicense for that m8?

TV, 2019,
24 eps
Me:-
Author:9
Thorfinn is an Icelander (from Iceland). Canute is Danish (from Denmark). Askeladd is clearly not Japanese.

TV, 2024,
25 eps
Me:-
Author:9
Every single character is Polish... because this is set in Poland.

TV, 2024,
12 eps
Me:-
Author:8
Alya is Russian (clearly, it's in the title).

TV, 2022,
12 eps
Me:-
Author:8
Juliet Queen Elizabeth VIII is... obviously not from Japan; she's actually American (as in, from the United States of America, unlike her name, which makes her appear to be Bri'sh, m8, ye got a loicense for that?).

TV, 2003,
13 eps
Me:-
Author:8
Everyone here is Italian, you know, "I cooka da meatball 馃, Ferrari 馃馃馃".

Movie, 2018,
3 eps
Me:-
Author:7
Everyone here is Chinese, from the People's Republic of China, not to be confused with the Republic of China, also known as Taiwan.

TV, 2020,
12 eps
Me:-
Author:8
Citron is from... somewhere... nobody really knows, but he likely comes from some Middle East dictatorship or some other godforsaken hellhole.

ONA, 2020,
10 eps
Me:-
Author:7
Mari was born in the Philippines, which also makes her children half-Filipinos.

TV, 2024,
12 eps
Me:-
Author:6
Anna Aveiro Nakamura dos Santos Moreira Cuccittini is, unsurprisingly, Brazilian. I mean, she even dresses in Brazil's flag colors and speaks (broken) Portuguese.