Alright, so, this is something I've tried to look up before, but nothing came up.
To delete Salon Character Data:
- Go to your Documents folder and open the folder named SEGA (if you haven't moved it).
- Open the PSO2 folder. You'll see a bunch of files with the same names as your Salon Character Data entries.
- 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.