I have done some sniffing around and figured out the file formats of several files in the AIKA Global client. Also, thanks to the work remka and Dwar have done, I was able to encrypt the files and convert the JIT files to PNGs.
As a product of this, I have dumped out the data and exported it as a website to present the data in a useful manner, as a way to help fellow players enjoy the game.
The database includes data about Reinforcing, Quest Items, Set Items, Relics, Equipment, Set Effects, Reinforce Probabilities, Recipes and Crafting.
The website is here:
AIKA Global Database
The file formats that contain said information are fairly simple. If you are interested in file formats as well, I can provide the structures I use to read the files. I have not completely figured everything out yet, so help is much appreciated. You can use this to help to kick off your work too.
This is purely for educational purposes.