Eventually he encountered his younger sister Tiel , who had led an elaborate chase to find him .
However , the ZERO System 2.0 proved unstable and drove Noembleux mad , causing him to believe that he could end all war by destroying those who would perpetuate it .
Eventually Noembleux encountered Noembleux 's younger sister Tiel , who had led an elaborate chase to find him .
However , the ZERO System 2.0 proved unstable and drove Noembleux mad , causing him to believe that he could end all war by destroying those who would perpetuate it .