It still works in NAGC. Here is what you do
1: Make a manual back-up of all the English "Char_-Name-", "Skill_-Name-" and the Renew files. (I have them inside a folder named "Resset" inside another folder named "Original")
2: Download the voice patch (Link on page 1) or if your like me use the netmarble patch site
Code:
http://patch.grandchase.cdn.netmarble.net/grandchase/Patch/SERVICE_2/resset/char_lupus.kom
Just enter the .kom file name at the end. (Yes it takes a while but at least you know then it's 100% fresh Korean voice files straight from the Korean servers)
3: After voice patch is complete/downloading the voices make a NEW back-up of the files patched (I have them in a folder labeled "Resset" inside a folder called "Edited")(These will be your Korean voices)
4: Go to your Grand chase folder and make a shortcut of Main.EXE
5: Right click made shortcut and go to properties
6: In the box labeled Target will read "X:\SGInteractive\Grand chase\Main.exe" (Variants maybe NTreev\Grand Chase\Main.exe, GameRage\Grand Chase\Main.exe)(X refers to the drive that the game is installed in)
7: Add a space followed by the following WITHOUT QUOTATION MARKS! "__kogstudios_original_service__" (Yes that is TWO under scores at the start and end)
8: Click Apply And start up shortcut to main.exe (Congratulations you just made a patch bypass that was easy~)
9: Make a memo to restore English voices from your Original folder on patch days so you don't have to sit longer waiting for it to re-patch the voices.
10: After weekly patch replace English voices with Korean and boot using the bypass you just made.
11: Store mass amounts of drink/food
12: Profit.