I know you need Korean but just follow the sprite directory.
/data/sprite/Àΰ£Á·/¸öÅë/¿© <- For female
/data/sprite/Àΰ£Á·/¸öÅë/³² <- For male
Work using those characters above since they're much easier to recognize than Korean...after you place them in the right folder, then that's when you use Unbollox to convert them into Korean.