Watch a review of Episode 2 that explores Kurumi's painful backstory and the episode's themes:
The episode explores Kurumi's past, specifically her crush on an upperclassman (Senpai). During the initial outbreak on the school roof, he was bitten and turned into a zombie. Kurumi was forced to kill him with a nearby shovel to save her own life, an event that continues to haunt her dreams. Gakkou Gurashi! Episode 2
The other members of the School Living Club— Yuuri and Miki —use Yuki's suggestion as a cover to safely gather essential supplies from the school store while keeping Yuki away from the actual danger of the zombies roaming the halls. Themes and Foreshadowing Watch a review of Episode 2 that explores