I got a Japanese account and saw that they have the PSone Atelier games on the PSN store. Have anyone played them? Are there any translation guides? I cannot read anything except yes and no in Japanese but it would be nice to know how the series started.
I believe Marie has a translation guide. I'm not sure about the others. I don't think they're really playable without one, but I've been wrong before on that. You can always try GameFAQs and look the games up one by one.
But be aware that the older games are quite different from the newer ones. Especially Marie and Elie, where the time limit is extremely strict and the titles are absolutely focused on management compared to the more relaxed time limits in the later games. They are also more heavily focused on replayability.