Sigma is a young man with long, lilac and white split dyed hair that reaches his waist. He acts confident and composed even at times of crisis in front of others. When left alone, Sigma starts freaking out and he admits he has no confidence in his skills. Because he has no memories, no family, and no friends, Sigma's greatest wish is a reason to live. His ability is an unnamed information exchange, he can gain and give information through physical contact. He's also the manager of the Sky Casino