From Attack on Titan, it's the childhood friend of Eren and Mikasa, Armin Arlert! He was not the strongest recruit into the Survey Corps., but what he lacked in physical prowess he made up for in intelligence. With his analytical mind and ability to stay cool under pressure, he proved himself a valuable asset in the fight against the Titans. He still has a soft heart though--will that prevent him from doing what must be done to ensure the future of mankind?