The Super-Secret Secret Ending (SPOILERS), help~? Options

[Feral Phoenix]

Does anyone know how to get the super-secret secret ending that is so secret, it doesn't even have a CG? You know the one.

Chapter-8-with-plot is just too easy with the Sprite girls, I'm looking for more of a challenge... and I don't want to just download the random save they have up; I wanna get it myself.

Since obviously getting a bad ending with Cierra liking you the least is out of the question, does anyone know if you can get Ledah's ending if with a bad Fia, Lina, or Serene ending, or if there's some other requirement for it, like an event or something that you have to do a certain way?

[CATGUN]

Actually the ending do exist but how to get it is the hard part.There has been many thory on how to get it.Here's some that I found.Note this iss from many other fanfite and also gamesite.(like gamefaq)
1.Make rose pleased with every of your action.
2.All girl must hate you.
3.Ein must do pervert stuff?(i don't know about this one)
4.Score S in every chapter.
5.Have high score(I don't think this willl work though)

Note all of the above I listed above is just theory so don't bet it will work okay.Alternately play riviera the special edition.