From time to time, topics show up asking if this Japanese site states that their resources can be used commercially, or they're looking for the author's name, so they can credit them properly. However, sometimes their terms are complex enough that google translate isn't able to do his job...
What exact type of resources are you looking for?
Graphics for creating character portraits?
Tutorials & Guides?
User Interface Elements?
actually, are there any JRPG type games (I guess turn based, so not ARPGs like say, Vagrant Story) where you have only one party member for the majority of the game? (I wonder if I'm forgetting something obvious.)