Attack on Titan

Centuries ago, humanity was nearly exterminated by monstrous humanoid creatures known as Titans, forcing the survivors to hide in fear behind massive concentric walls. These giants are terrifying not just for their size, but because their desire for human flesh seems to stem from pleasure rather than hunger. To survive, the remnants of humanity lived within these defensive barriers, enjoying a century of peace without a single Titan encounter. However, this fragile calm is shattered when a colossal Titan breaches the supposedly impregnable outer wall, reigniting the struggle for survival against these man-eating monsters. After experiencing a devastating personal loss due to the invading Titans, Eren Yeager vows to eradicate them by joining the Survey Corps, an elite military unit that fights the ruthless humanoids outside the walls. Eren, along with his adopted sister Mikasa Ackerman and childhood friend Armin Arlert, joins the brutal war against the Titans, racing to find a way to defeat them before the last walls fall.