Sato (Ajin)

Satō (佐藤, Satō, Samuel T. Owens) is the main antagonist of Ajin. He's a malevolent and supremacist ajin who act as a terrorist in order to change the Ajin's status in Japan (in fact he only want to enjoy his life by killing and destroying).

History
His given name when born is actually Samuel T. Owen.

As a child, Samuel was seen ruthlessly killing numerous animals in cold blood for entertainment in a barn, much to his father's fear. While his father scolds Samuel and loves him deeply, Samuel himself seems indifferent and incapable of understanding his emotions.

Satō was part of the United States Marine Corps in the past. Nicknamed "Poker-face," he began his 8-week recruit training in San Diego in 1969 by faking his age to join the corps. After the first 2 weeks, he left because of a supposed serious illness. This was however a cover, as he was actually recruited to be part of an ultra-elite section of the military known only as the "team" while fighting in Vietnam.

In 1976, after the end of the war, Satō and the "team," as well as a nameless man being questioned by Tosaki in present time, are assigned to a secret recovery mission in Vietnam. With Satō in the lead, the group had managed to perfectly execute the mission in 2 days without firing a single shot, but just as the team was to return to the extraction point, "the devil woke up," as Satō fired a shot, catching the attention of hundreds of enemies, forcing the men into a battle, resulting in one member dead, one heavily injured, and Satō himself without a leg. After his return, he was dishonorably discharged.

Appearance
Satō has short, grey hair. He's relatively old and it shows on his face. He is almost always wearing a hunting cap. While Satō's father is British and his mother is Chinese, he himself is from the United States of America.

According to a comrade of his from his time as a marine, he is about 5 feet 8 inches in height.

Personality
Sato is shown to be a calm and cheerful individual in the outside as he's able to make people feel calm in his presence. However, beneath this facade is a sinister persona of his - he is merciless when it comes to killing others and he often finds it fun to cause destruction and kill people (whether they're innocent or not). He's also cautious, logical, and calculating as he's able to devise strategies that gave his desired outcome, often times outsmarting his opponents as demonstrated when he enacted in his plan to take out Grant Pharma and successfully defeated the SAT squads that was assigned to take him out despite them outnumbering him.

Satō has been described as a "player" by Nagai, and "not a revolutionary or a tactician." He is passionate about video games and gaming in general, as shown in a short omake.

Kei Nagai
At first, Satō seemed almost friendly to Kei to earn his trust. He kept this façade (to Tanaka's distaste) in order for Kei to think that he was on his side. That's why he made the decision to shoot Kei with a tranquilizer gun (making Tanaka use his IBM) to make it look like the humans where attacking, instead of simply kidnapping him, stating that "it would just make him hate us". Kei not being aware of this, wakes up strapped up to an operation table, cue to his ten day torture. Later on, Satō tells him that he came to save him. Kei apologizes for the trouble he has caused. While they were "escaping", Kei tells Satō that he doesn't care about the lives of other people, but that it's unnecessary to kill people that aren't even involved. Satō decides to drop his façade and opts to kill Kei instead. Kei manages to escape with the help of one of the doctors, who later dies.

As the story progresses, Kei (along with Kō Nakano) have decided to join forces with Tosaki and help him take down Satō, not because he has caused multiple terrorist attacks, but because too much attention would be brought to Kei, therefore putting his own life in danger.

Kōji Tanaka
Kōji was rescued by Satō and they are now associates. Tanaka is made his second-in-command after he orchestrates his plan of genocide. It is shown that Sato finds him trustworthy as he entrusted Tanaka with plans to assassinate the targets in his list of people to be assassinated.

Abilities and PowersEdit
Sato has the usual abilities any Ajin has.
 * Immortality - Like all Ajin, Satō is completely immortal. He is unable to die under any circumstances such as being completely crushed, decapitated, or even due to malnutrition.
 * Paralysis Scream - While he has never been witnessed to use this, it can be assumed that he can paralyze others around him by screaming, as all Ajins possess this capability. The immobility can range from seconds to minutes. However, this is easily countered by wearing ear plugs/noise dampeners.
 * IBM - Like most Ajin, Satō possesses IBM and can also manifest a Black Ghost. His Black Ghost's defining feature is its half-head - the shape of the head looks like a triangle when viewed from above while it looks flat when viewed in a third person view. Sato can completely control his Ghost to the point where he can make his Ghost mimic his voice (but has difficulty doing so)[1] and share its field of vision while being able to command it to attack with caution. Satō's IBM is able to work independently from his user, being able to work after Satō has been incapacitated. It has the ability of judge a situation as it will kill Satō himself in order for him to revive with the effects of the tranquilizers gone.

Trivia

 * Satō is the most common surname in Japan. The kanji used in his name (佐藤) mean "help, assist" and "wisteria" (a type of flower).
 * He only opened his eyes twice throughout the whole series.
 * In the anime his real name is Samuel T O'Brien
 * Coincedentally Sato can be used as an acronym for Samuel T. Owen or O'brien.