Sigma is a young man with long straight hair reaching to the waist. He also has areas of hair that appear to be protruding spikes and are parted in the middle of his face. The color of his hair on the left side is lilac, and on the right side is white. The color of his eyes is grayish. He also wears earrings in both ears. 21 years old. Kind, caring, clingy, sometimes awkward.