Alright, so, this is something I've tried to look up before, but nothing came up.

To delete Salon Character Data:

  1. Go to your Documents folder and open the folder named SEGA (if you haven't moved it).
  2. Open the PSO2 folder. You'll see a bunch of files with the same names as your Salon Character Data entries.
  3. To get rid of them, delete the files you want to remove.

Easy! You don't even need to close and reopen the game for it to work.