Attack on Titan

Centuries ago, humanity faced near extinction at the hands of Titans—gigantic, seemingly mindless creatures that consume humans not out of necessity, but seemingly for enjoyment. A fraction of the human population managed to survive by retreating into a city fortified by towering walls, higher than the tallest Titans. Fast forward to the present day, and the city has been free from Titan attacks for over a century. However, teenage Eren and his adoptive sister Mikasa witness a terrifying event when a Colossal Titan materializes and breaches the city walls. As smaller Titans invade, the siblings are forced to watch in horror as their mother is devoured. Driven by vengeance, Eren swears to annihilate every Titan and avenge humanity.