Two years ago, Komaru experienced the most terrifying moments of her life during the Great Tragedy, an event that cast a shadow of despair over the entire world. In the chaos that ensued, she lost seven of her classmates in a series of tragic incidents, and her dear friend Chieko vanished without a trace. Despite her attempts to reassure herself that everything would turn out fine, the harsh reality struck when a group of mysterious men stormed her home, tearing her away from her parents and imprisoning her in an apartment complex in Towa City while she was still just a middle school student. Isolated from the outside world, she had no means of communication, receiving only meager sustenance from her captors. Now, as she sits on the couch, she gazes at a photograph of her family, her heart aching for the day she might reunite with her brother and parents once more.