None, actually the so-called destiny in this manwha works as a road made by the goddess that the characters can take without knowing where it will lead them in the end, but they can come and deviate from the path taking another, after all even if their bodies die their souls probably not, unless they can no longer be kept in the mortal plane, it is a cyclo, you reincarnate, you live and die, this is repeated until the souls can no longer.
Original Raeliana was going to die because of her fiancé and a mercenary, being the root of all her destiny, but if this root is cut she will automatically have taken another path, either she will kill them or simply use Beatrice with the new soul so that take care of the problem, her body as such isn't cursed, she had a predetermined path, yes, but if she wanted she could get off the road and take another route, obviously by doing this they would change the current routes of the characters that had to do with her, Og Rae's soul wasn't going to die either since even though the witch manipulated her, if you look at it coldly, she didn't really lie to her since she told her the information that she had given her, playing with the self-esteem problems that OG Rae has (although there is a badly translated line, it seems that Og Rae believed that her parents did not love her which is a very bad mistake, being that in reality she said that Og Rae does not love her family and they did not really care).
The current Raeliana probably has certain conflicts after realizing how life itself is directed, but she willn't die because the roots that would kill her have already been uprooted.