I thought it was a mistake so I search on the others headers of the same game, from US (TOSEC / TRURIP / etc.)
Apparently, they fucked up the region for this game as they put J for Japan in the header, for the US releases.
So the Region wasn't Japan but US as I only get the CD and not the cover. I compare with the others GdG releases and they are in the good Region.
Thanks for your attention
PS: Btw I've added more Japan Demo