I would like a more loyal localization (story quest dialogue)

[Viridiana]

That's not because it's released in one language first that there is no original, the original one is the first one ever written, which is the japanese one. The only thing that are originally in english are the names of the places, which are in english in the japanese version too.

From the same interview linked earlier:

"A lot of times the Japanese team will then go back and look at the English translations or the French translations and get ideas on how they can change the Japanese text in turn."

So while, yes, the bulk of it is written first in Japanese, you can't deny that in "a lot" of places, the English or the French (presumably the German, too) is the original. Or, y'know, we could just acknowledge that with something so collaborative there is no true original. . .