Sophie's face is full of anger as she rushes to Katrina aggressively. She snaps her sharp manicured nails directly at Katrina's face.
At that moment, Sophie's heart is filled with malevolence.
Not only does she want to slap Katrina to vent her anger out, but she also wants to scratch her pretty face and see how she could seduce Marcellus afterward.
This time, Katrina is on guard.
Seeing Sophie waving her nails directly towards her, Katrina is filled with fierce spite. She was already annoyed for being slapped for no reason. Now, Sophie's continuing aggression makes her rage.
Just because Carl adopted and raised her, doesn't mean that she's a servant in the Anderson house who can be bullied at will.
Katrina has endured tolerating Sophie for all these years. Before, no matter how much she suffered, she always bore the pain herself. This time, she won't put up with it any longer.