It's that very game that I'm talking about - it's still very fresh so I'm rather reluctant of asking it.
Your command worked, Checkmate. Thank you for the insight...that's something a layman like me can never hope to accomplish, as I am not very computer literate nor too knowledgeable in these stuff (it's mostly Westside, CrageGUI, ExtractData, and a site or two that tells what-to-use that brought me this far, and I've only dabbled into asmodean CMD tools when I had to work with Dracu-Riot).
I might as well as provide the back-story on why I formed the "password protected" .noa thing, for the sake of knowledge.
Figure 1: The game's directory
Figure 2: CrageGUI fails, requiring end process of crass.exe to make it stop
Figure 3: Set CrageGUI to ignore errors, result. At least it won't keep going.
Figure 4: Attempt to use noa Archiver to open, the archive calls for password - *This is where I formed the hypothesis that it is password-protected, and why CrageGUI failed to get past it*
Figure 5: Attempt to extract without password: error, nothing was accomplished
data2.noa (probably system-related stuff) and data3.noa (the one that contain EVCGs) are encrypted (calls for password in noa archiver and fails to be extracted by just CrageGUI) while data1.noa and data4.noa can be easily extracted via CrageGUI or noa archiver.
When I tried the command for the first time, it got stuck and failed due to the game being installed in place that cause problem (namely, Program Files, which contain a space). I uninstalled the game and re-installed on the root of drive C, completed with maker folder. The command then worked smoothly after the necessary adjustments.
Again, thank you for sharing the command...This, and the insight gained, might be useful if I run into something like this again in the future...
I think I can take it from here converting all the eri back into bmp, one by one if need be.