Mylius Zeramuski

Millius Zermusky (ミリウス・ゼルムスキー) is a member of the 104th Trainees Squad.

Story
Millius Zermusky was a graduate of the 104th Trainees Squad. After the second attack of the Colossal Titan, he was assigned to the middle guard along with Eren Jaeger and Armin Arlelt.

Trivia

 * Millius was previously dubbed "Background-chan" or "Background-kun" on Tumblr, as many people had taken a liking to him before knowing his name.​