1. Download the link
2. extract
3. find folder \'\\Character\\Player\\Tex\\\' in RF folder

*if u dont know, just right click in RF icon in ur desktop
> open properties
> find target, see where the folder character
> open it, n come to folder player
> open it, n come to folder tex, n open it again..

4. find file DEFAULTCF.RFS, n go to save place (this is for unpatch)
5. save DEFAULTCF.RFS from ur file when u download
6. login > n unequip ur cloth, character cora female ofcourse.. hwahahaha

LINK :
Cora Skin Hack