Thanks to Lillian's friend and Nora's biological mother, who had hoarded food in fear of shortages, they had managed to survive the initial days of the apocalypse.
Later, as supplies dwindled, survivors from the neighborhood began venturing out to clear zombies and scavenge for resources.
Lillian, relying on her newfound ability, had managed to avoid zombies and scavenge some food and water from her building.
Eventually, she had started interacting with other survivors in the neighborhood.
However, many of them emitted dangerous yellow or even red auras when she observed them, keeping her cautious and alert.
This vigilance had saved her from several dangerous encounters with survivors who had ill intentions towards her.
One of those survivors had somehow provoked a zombie emitting a dark red aura, which had stormed into the neighborhood, massacring everyone except Lillian and Nora.