"Armin Arlert" is one of the main characters appearing in the manga series Attack On Titan. A loyal but timid friend of Eren Jaeger and Mikasa Ackermann, Armin is a curious and intelligent young man with a fascination of the world beyond the Walls. Eager to prove his worth and worries of the safety of his friends, Armin gains confidence of his abilities as he grows, and even manages to earn the ability to change to a Titan in his own. He first appears in The Biggest Hunger Games Sim.