Height 159 cm (5'2") Ayato Kirishima is Touka Kirishima's younger brother. He grew up with his sister in the 20th ward but at some point of time, he disappeared. Currently, he is an executive of Aogiri Tree. An arrogant youth with a similar harsh attitude that resembles his sister. Other than physical looks, he shares many similarities with Touka such as his cold, hotblooded attitude and a habit for kicking people. However, he's more harsh compared to her and surprisingly nicer than his Aogiri superiors.