The Undead (RIREN)

While in class, sirens were suddenly activated and a lot of people outside school were running, screaming, asking for help. Currently, in Levi's class, everyone except Eren were looking outside the window, trying to know what's happening. While Eren was talking to his dad on the phone. His dad told him to go to his secret hideout, the dome. He was given the duty to save his class and teachers. On their journey to his dome, love will flourish, some will die, friendship and bond will be stronger.