He is the Russian letter A, and is represented as the first letter in the alphabet. His body is colored orange, with his limbs being a lighter shade.
Due to being the first in the alphabet, Az takes advantage of his position. A notable character that he picks on is Yaori, who is last in the hierarchy. He constantly offends and makes fun of Yaori, calling him "gloomy idiot" and "lastie".  He has henchmen who follow him and hosts constant meetings. He is also kiras "boyfriend" tho may be one sided