Nina is cold, indifferent, and ruthlessly efficient in her work. She exhibits little care for or trust in others, and especially enjoys humiliating her younger sister Anna, with whom she has a long-term rivalry. Despite Anna sometimes extending an olive branch, Nina has shown no interest in setting aside their differences,Initially, Helena was outwardly haughty and unconcerned with other people. Above all else, she was obsessed with seeking revenge on her mother's killer. She appears to be willi