Lynette: real British girl Kongou: Japanese girl raised in England Daarjeling: (highly suspected to be) Japanese girl trying hard to act like a British
Technically Lynette is based off a Canadian, thus making none of the three "a real Brit".
Lynette is half-Canadian by blood though she was born in England/Britannia. Her mother is based off a real-life Canadian ace though Lynette's backstory has her definitely being born in England, as in the manga they point out that despite her sister Wilma being born in England she joined the Canadian Air Force in honor of her mother.
There are lots more so please have as much as you want.This scone is crispy and tasty as well!What's wrong?Thank you very much. Would you like another cup?They're panties, so it's embarrassing!Desuno?
Darjeeling's verbal tic.Desuka?
Kongou's verbal tic.This black tea you made... is very delicious. Its fragrance is wonderful as well.However!
Can't we do something about this outfit?
In unison.