The princess died and another soul isekai-ed inside her body.. that soul read the story of the novel.. maybe she doesn't hate the second male lead (THE FUTURE EMPEROR) because he's just wanting for warmth and love that he never felt since childhood.. well just my opinion.. NO HATE JUST LOVE ♡♡♡
Spoiler... (sorry, for my bad english)
Cayena see Rezef as a poor child, who has a twist personality because he didn’t receive love of anyone. So she thought that if she gives him enough affection and support he wouldn’t dispose her like he did in the past and maybe would really treat her as his older sister.
...
But she didn’t expected that he would turn out to be a yandere who would kill even her nanny to keep her in check.
So now she won’t help him anymore, she wants the crown for her or for Ethel (step young brother) to protect her and the people she cared for
I think the reason everyone liked Rezef is because he became kind of a simp, And maybe because before the readers still believe that he would change because of the mc.
Raphael really hated her before, because of her disrespectful, naive and annoying manners. He has a antissocial personality you see. But he never treat her harshly, if my memory is correct.
Thank
So why does everyone like the brother and ml? Also the bother use his sis n kill her, n also destroyed her life by marriage her off. The ml also hate her too right? Is this a revenge story? Why help his brother for throne when he kill her! Someone spoiler me by telling me how this gonna turn out, if u can. (づ￣ ³￣)づ