After his mother's death at the hand of these horrific beasts, ten-year-old Yeager swears that, once he's old enough, he'll enlist in the defense force, killing as many of the terrifying Titans as possible.
Almost definitely this decade's most popular anime series, Attack on Titan follows Eren Yeager, who lives in a world where the only surviving city is guarded by large walls to protect the inhabitants from the incomprehensible humanoid Titans, man-eating creatures who will stop at nothing to get to their prey. After his mother's death at the hand of these horrific beasts, ten-year-old Yeager swears that, once he's old enough, he'll enlist in the defense force, killing as many of the terrifying Titans as possible.