Watch a review of Episode 2 that explores Kurumi's painful backstory and the episode's themes:
The episode highlights the contrast between the girls' desperate survival tactics (rationing food, barricading stairs) and Yuki’s cheerful, oblivious behavior. Gakkou Gurashi! Episode 2
Sharp-eyed viewers on Reddit noted subtle clues regarding the nature of Megumi Sakura (Megu-nee), such as other characters not directly interacting with her or her lack of a water glass during meals. Watch a review of Episode 2 that explores
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. During the initial outbreak on the school roof,
Yuki Takeya , still living in a delusional state where the zombie apocalypse hasn't happened, suggests a "test of courage" (kimodameshi) by exploring the school at night.