2000 years from now, humans are nearly exterminated by titans. Titans are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest of titans. Flash forward to the present and the city has not seen a titan in over 100 years. Teenage boy Eren and his foster sister Mikasa witness something horrific as the city walls are destroyed by a colossal titan that appears out of thin air. As the smaller titans flood the city, the two kids watch in horror as their mother is eaten alive. Eren vows that he will murder every single titan and take revenge for all of mankind. Written by Anonymous

The story follows Eren Yeager and Mikasa Ackerman entering Titan Junior High, a school where humans and Titans study in the same area in coexistence. Because of a traumatic event, where the Colossal Titan ate his lunch back in middle school, Eren hates the Titans, and is constantly trying to find a way to rid the earth of their kind. Because of this, he has a hard time making friends, much to Mikasa's worry.

Okabe Rintarou, a university student who refers to himself as Crazy Mad Scientist Hououin Kyouma and his lab's members work on a microwave device that can transfer messages to the past. Without getting captured, they should get it working in order to beat the evil organization, SERN and stop their evil plans. Written by j4x