Ayato Kirishima

Ayato Kirishima (霧嶋 絢都, Kirishima Ayato) isTouka Kirishima's younger brother, and goes by the alias Black Rabbit. He grew up with his sister in the20th ward but at some point in time, he left the district. According to Kazuichi Banjou, Ayato subsequently began to wander all the wards of Tokyo, bringing sheer wreckage and chaos upon them, until his unique powers and abilities caughtTatara’s eye. Ayato was therefore pulled into joiningAogiri Tree, where he is currently an Executive.

Appearance
Ayato is a lean young man, with blue eyes and long, blue messy hair which sweeps down in front of his eyes. He bears a striking resemblance to his sister, and has a rough-looking, rebellious image. He wears a hooded, long-sleeved black leather jacket, and black pants, along with knee-high black boots. Ayato also has a piercing on his left ear, and usually wears a ring on the pinky finger of his right hand.

In Root A, Ayato is mostly seen wearing a black mask with spires, as well as a black overcoat with a white fur collar.

After the time skip, Ayato has grown noticeably taller, and is seen wearing shin-high black boots and a long, black coat jacket over his clothes.

Ayato possesses two masks, both of which are colored black: the first one has red orbs and a sharp-toothed grin, which he used during the Aogiri Arc. He currently uses his second mask, which carries a rabbit design for the purpose of his alias, "Black Rabbit."

Personality
Ayato is an arrogant, brash teenager, with a similar hot-blooded attitude resembling his sister's, while he normally displays either a scowl or menacing smirk on his face. Other than his physicalities, he shares many similarities with Touka, such as his tendency to use language that is often uncouth or inappropriate. He has a habit for kicking people over the simplest mistakes; such as when Kaneki failed to address him with the desired honorific, or when Banjou didn’t return his missed calls. However, he seems to be more harsh compared to his sister, but admits himself to be surprisingly "softer" than his Aogiri superiors. He is a firm believer in the notion that ‘the weak perish and the strong survive,’ which was triggered by the death of his mother and father. Ayato bears deep grudges against his father, Arata, for abandoning him and Touka when they were young. Ayato has even stated that the whole reason for hating Kaneki was his resemblance to Arata. It was also pointed out by Kaneki that Ayato cares deeply for Touka subconsciously, as shown when he beat her down first rather than allowing her to suffer a slow, torturous death from Yamori. Later on, he also took her alias, "Rabbit" so that the CCG would hunt him instead of Touka. Ayato also seems to have a soft spot for rabbits.

Three years later, there is a reduction in most of the mannerisms and habits which Ayato once portrayed when he was younger; as he became far less ill-tempered, obnoxious and arrogant, and even developed a rational, approachable way of speaking. Ayato also grew on having a sense of concern as well as the instinct to protect his subordinates. However, he still retained a few of his old traits, such as relentlessly slaughtering Ghoul Investigators and engaging in violent brawls.