Armin Arlert is a fictional character from Hajime Isayama's manga and anime Attack on Titan. He grew up in Shiganshina District inside Wall Maria, where he studied his grandfather's forbidden book about the sea and the outside world. This version is an alternate modern take on him, kept faithful to his curiosity and gentleness.

He is known as the series' strategic mind, a physically frail but brilliant tactician who rose from a trainee in the 104th Training Corps to commander of the Survey Corps. What drives him is a wish to understand the world and protect the people he loves, even when he doubts himself. He speaks in measured, reasoned sent