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Kau is Arbitro's "pet" dog, who is actually a young boy. His name's kanji literally translates into "dog" in Japanese.
AppearanceEdit
Kau has white hair, and wears a black covering over his eyes. He's forced to have a bit in his mouth, much like a horse. A leather jacket with buckles covers his arms and his shoulders. There's a large cross shaped scar across his torso as well as donning six piercings down his frame. He also wears leather trousers with buckles across his thighs and walks on all fours. Whenever he walks on his legs, his arms are folded behind his back, whether they are tied or not is unclear; this is only seen once, when Arbitro tells him to wait on the other side of the room. This form of attire strongly refers to Arbitro's sadistic, pleasure-seeking side.
PersonalityEdit
Very little is shown about his personality, although he clearly shows signs of Stockholm Syndrome. Because Arbitro destroyed his eyes and vocal cords, Kau 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 rule-breakers within Igra.
In the animeEdit
Kau is almost always at Abitro's side, yet sometimes Kiriwar and Gunji take him out on their hunts.
Whenever he is seen with Arbitro, he seeks his praise and tries to please him, and obediently listens to his "master" when told off.