@I_need_a_break Your explanation is damn on point, i agree. For Medeia haters lmao why become "Mary Sue" is bad in the first place tho? it's not just a term for bad written characters, stop using it to explain your saltiness. "A Capable Maid"'s FL is basically Mary Sue, "The Black Haired Princess" FL & ML, Sakamoto from Sakamoto Desu Ga, etc and people still love them... moreover saying Medeia is Mary Sue is kinda miss, her life is basically a struggle and she's not even a morally good person from chapter 1.
I never been a fan of weakling and easily manipulated character like Psyche, so i just don't like her for personal taste, but that doesn't mean she's a bad character, her dynamic with Medeia is interesting and it's just unecessary to "i hate Psyche because of Medeia or i hate Medeia because of Psyche" clearly what we should logically hate here is the asshole Prince, simple.