Replace female character with Batwoman (Choose only 1 at a time)
Unzip and replace 'Sifu' folder in to your Sifu Main directory.
or copy '.pak' and '.sig' files to '[Main Sifu Path]\Sifu\Content\Paks\~mods'

Replace female character with Batgirl (Choose only 1 at a time)
Unzip and replace 'Sifu' folder in to your Sifu Main directory.
or copy '.pak' and '.sig' files to '[Main Sifu Path]\Sifu\Content\Paks\~mods'