Sigma

Gender:
Male Male
Birthday:
Unknown [4]
Age:
Unknown [4]
Height:
177 cm (5'9) [4]
Weight:
62 kg [4]
Blood type:
Unknown [4]
Likes:
Casinos, high places, talent, cookies [4]
Dislikes:
Deserts, hunger, people looking to use it

Ability:
Information exchange capability (unnamed)
Occupation:
Member of Decay of the Angel (former)
Casino Manager
Affiliation:
Angel Decay (old)
Sky Casino

Sigma is a young man with long, straight hair that reaches his waist. He also has parts of his hair that appear to be in loose spikes and is parted in the middle of his face. The color of the left side of his hair is lilac and the right side is white. His eye color is gray. He also wears earrings in both ears. He is seen wearing a long white coat with black pants. His coat has a glowing or galactic design on the inside.

He seems to be kind to his customers at Sky Casino as he gave another chance to a customer saying the game was invalid.

He also appears to have a strong sense of ownership. In a conversation with Teruko Okura to close the casino, Sigma refuses and even asks her who will reimburse the revenue and reputation if the casino were to be closed and states that the casino is his life and its customers are valuable to him. He acts confident and composed even in times of crisis in front of his staff, giving the impression that he is the perfect casino manager and a capable leader. When left alone, Sigma begins to freak out and admits that he has no confidence in his abilities as a casino manager because of his lack of natural talents.[5]

Having no memories, family, or friends, Sigma's greatest wish is a reason to live. He was also described as ruthless by Fyodor Dostoevsky, as Sigma is a desperate man.

Main article: Information exchange capability
His ability allows him to exchange information with anyone he touches. The exchange consists of "giving" them the personal information they want to know, and thus giving Sigma the information he wants to know.

Leadership Skills: As the manager of Sky Casino, he is able to delegate and order tasks appropriately among his subordinates, including taking care of his customers.[5]
Memorization: Sigma can memorize the names of features of his customers, even up to 20,000 guests. However, it is revealed that he memorized the knowledge of Sky Casino and its guests as he did not want to lose his casino.

Sigma himself was a person born from being written in the Book. When he first opened his eyes and became aware of his surroundings, the first thing that greeted him was not a midwife or a mother, but a vast desert filled with nothingness, and his only possessions were the clothes on his back and a train ticket from a station that does not exist.

Confused by his circumstances, he wandered the wasteland of nothingness until he was eventually captured by an armed group and held prisoner, where he finally unlocked his Gift, causing his captors to take advantage of his ability for their gain during his time with them. Eventually, he managed to escape from there and continued to wander the world nihilistically due to not knowing his reason for living or existing.

At one point, Sigma was approached and invited by Fyodor to join the Angel Decay. Upon agreeing, he was eventually given the task of overseeing the Sky Casino, a job he grew to love due to it giving him a sense of purpose.[1] Somewhere along his time together with the Angel Decay, he eventually obtained information on the location of the "page" of the Book after meeting and attacking the director of the Special Division for Unusual Powers, Santōka Taneda, using his ability, though he claims that his attack was a mere threat and that he had no intention of harming him.