Sigma is a young lady with long straight hair reaching to the waist. She also has areas of hair that appear to be protruding spikes and are parted in the middle of his face. The color of her hair on the left side is lilac, and on the right side is white, because Sigma had hyperchromia of hair. The color of her eyes is grayish. She also wears earrings in both ears. "Sigma" — the name she gave herself. Сalm, reasonable, courageous, possessive. Cruel and stubborn when it comes to her Sky Casino.