wait why do people hate the saintess so much??? I need spoilers!!!!!!!

Even for the mc isn't the princess she says am going to kill mc with evil look in her eyes

Because she thinks that the princess has no brain to reason with and the only solution is to kill her. Acting all saint and righteous when she's a f*ing bitch. I want to punch her in the face (ʘ言ʘ╬)