Yes, I think around the 1940s or 50s.

you say 40s/50s are modern world O.o
okkkkkkaaayyyyyyyyyyy

is it with a little bit adventure?

Depends on the word modern.
I mean if you mean technically, then no.
But when you mean exposed World, I would say Yes.
So Yes in my Opinion it´s modern.

But going back to your Question, yes with adventure.

yeah okay

well don´t know what to ask anymore so
she is nadia form ähhhhhhhhh what was the anime name?????

Lul.
Nadia and the secret of blue water.

see exactly what i said ^^

Yes I see.

^^

and here

From a series?

jupp he is from a tv series