FFS I'm sick of readers like you virtue signaling and trying to justify Raim's actions...
Sooae can't be mad at Raim? Raim owes absolutely everything she has to Sooae and still said she hates her and wants to take something from her. She's sick in the head. Even teenagers have a moral compass.
And regarding the parents, although it isn't nice, I feel it's obvious they love their biological child that they've known since birth more than her friend they took in out of pity when she was probably 10.