He acts confident and composed even at times of crisis in front of his staff, giving the impression that he's the perfect casino manager and a capable leader. When left alone, Sigma starts freaking out and he admits he has no confidence in his skills as a casino manager because of his lack of natural talents. Because he has no memories, no family, and no friends, Sigma's greatest wish is a reason to live. He was also described as implacable by Fyodor Dostoevsky since Sigma is a desperate man