Aigo is a man with a muscular body and tall appearance. His long white hair and grey eyes give him a mature and dignified look. He wears a traditional Chinese dress that flows in the wind, and his demeanor is exuding a sense of superiority and nobility. His age is unknown and he is believed to be immortal. In terms of personality, Aigo is proud, aristocratic, and has a cold and distant demeanor. The character prefers to keep a level head and is not emotional in his actions.