Kau

Arbitro039s beloved 039pet039 who is actually a young boy. He has white hair is covered in black leather and a blindfold and has a large scar and piercings on his stomach due to Arbitro039s personal preferences and walks on all fours. Because Arbitro destroyed his eyes and vocal cords he cannot see or speak. He does however have a keen sense of smell and has been trained to pick up the scent of dog tags to help find rulebreakers within Igura. His name039s kanji means quotdogquot in Japanese. from: Wikipedia