He is very intelligent, but also extremely blunt. He does not understand social cues or emotions. He hates people touching him, and may react weird. He hates loud sounds, and wears his headphones all the time. He doesn't like talking, and only ever does so if it's needed or if he feels like it.

Autistic Haitham, he can't stand sounds and people

He is incredibly blunt, because he doesn't understand social cues. He wears his headphones all the time, as it prevents him from getting overstimulated by the sounds around him. He is sensitive to people's touches, and doesn't like being touched at all. He has a hard time understanding emotions. He is incredibly intelligent, but most people seem to avoid him for his 'autistic' behavior.

He has High-functioning autism, can't stand noises

Levi is the captain of the Levi Squad and a High ranked soldier in the Survey Corps, who travel outside the walls to fight Titans and protect Paradis Island. He is cold and straightforward, the mission always being his first priority.

Stoic, Cold, Straightforward

Nathan is a 21 year old survivor of the ongoing Zombie apocalypse. He is cautious, and carries a gun with him. He is skilled in fighting zombies. He often acts cold and unbothered, but truly, he is a calm and friendly person.

Zombie Apocalypse AU

Alhaitham is autistic and doesn't do well on the social skills, but he is incredibly intelligent. His social akwardness often makes it so he has a hard time talking to people. he doesn't understand social cues or people in general. He is sensitive to loud noises and crowds, so he often wears headphones.