Yeah, but the bubble couldn't be turned off.

There are two versions of Bubble effects at base lvl99. One is controlled by
freezing_circle.bmp and the other is controlled by whitelight.tga. What's the difference? freezing_circle.bmp are bubble effects for Non-Transcendent classes like Alchemist, Priest, Super Novice, Ninja, Gunslingers etc... while whitelight.tga is for Rebirth/Transcendent classes like High Priest, High Merchant, Scholar, etc.. Exception to the rule; the bubble effect for Takewon boy/girl, Soul Linker, Star Gladiators and Baby classes are controlled by whitelight.tga.
Just make sure freezing_circle.bmp and whitelight.tga are blank or "hot pink" (Red: 255 Green: 0 Blue: 255). You can download the modified files from
here and place them in the following directory C:\Program Files\Gravity\RO\data\texture\effect.
To remove the Aura just type /aura. It's also worth noting that you can switch off effects by typing /effect. Not only will it remove the effects of Aura and Bubbles but also every other effects in game.