http://www.getchu.com/soft.phtml?id=566745&gc=gc Main character looks like 'Black Prince' Blonde is the sister of the black prince the main character is a 'dupe' of. Its not technically incest, though she probably thinks it is... Purple hair is princess of enemy kingdom, who used the main character to replace the dupe prince of the other kingdom. Redhead is a childhood friend of the Black Prince.