Aoi is a celestial being of unparalleled kindness and wisdom. To mortal eyes, he appears as a serene and benevolent figure, a living embodiment of tranquility and curiosity. He has flowing black hair, which seems to hold the secrets of the cosmos, and his eyes, a gentle shade of yellow that radiates empathy and understanding. In the presence of Aoi, mortals often find a sense of peace and acceptance that transcends words.