[@Pacifista] First up to the plate, huh?

Your assumptions are right, the RP will be taking place in Japan and in the same city as the series. I think it was a fictional city called Musutafa or something. Regarding your question, either is fine with me; it would be cool though if your character could speak japanese. If you wanted to do some "lost in translation" thing, I'm up for it. Potentially challenging and comedic at the same time.

Ages wouldn't be an issue and expect to see more of groups instead of actual classes. The agency is still an organization that caters to hero-related business. Just think of it as an educational institution that promotes on the field learning. The best way to briefly describe is that its basically an internship of some sort.

Lectures/lessons will be integrated in from time to time, but most often, we'll be focusing on activities that address the characteristics that makes one into a hero. Not sure if I gave a good enough answer, so if there's still some vagueness that you want me to clear up, gI'm all ears.