Korisu

Korisu (pronounced CORE ih sue) is pretty much the antagonist. At first, she is a friend who has gained everyone's trust, though a bit distant, and it was until the end where she looked as if she was hiding something. They found out that though she is pretty young, Korisu is the current passed down leader and decision maker for Pollentia Party, a group who (spoiler) is behind the tragedies and traumas caused in the many tids who had lived in their Homeland of emotionlessness. They were the ones who hacked the robots into killing people in the prologue, for reasons.  She has a medium, high pitched voice. Though she is pretty evil and manipulative, she is actually kind to everybody but is pretty harsh and psychotic at times.