Where girl and fish go?
This is a different story.
Crossover when?

hmmm, but japanese jesus takes place 65 thousand years before girl and fish

Question! Where do come the new cpu’s and gpu’s from? I mean, isn’t this some kind of post-apocalyptic society?

Mostly japanese taiwan. But they are distributed by the japanese romans all throughout japanese rome.

And no, this takes place in the past, during the age of japanese antiquity.

If you’re asking about girl and fish, which takes place after the apocalypse, then the answer is MATACORP.