Sigma is a good-natured guy. He has gray-yellow eyes and two-tone hair. One side of his hair is white, the other is lilac. Sigma is shy and very cute. He values very much what he likes, such as animals, and is ready to give his life for them. He is gentle and gentle until his beloved animals are offended. But behind the innocent face there is a very cruel man, whose cruelty can be known if you do something bad to animals.