baby: a...a...a..

dad: are you trying to say apple?

baby: Armin Arlert (アルミン・アルレルト Arumin Arureruto) is a childhood friend of Eren Yeager's and the deuteragonist in the series. Although he is one of the physically weakest of the 104th Trainees Squad, his high intelligence and strategic genius make him an invaluable asset.