After graduating in his cadet class, he is swallowed by a bearded Titan during his first mission in Trost. However, he soon reappears as a 15-meter Rogue Titan who fights other Titans on equal ground.

Very protective of Eren, and follows him wherever she can. She graduated at the top of the cadet class, and is regarded as an unprecedented genius, easily worth a hundred men in battle.

Armin is Eren's childhood friend who joins him in the Scouts in order to make a meaningful difference in the world, and to fulfill his dream of seeing the outside world.