Reborn: My Apocalypse Core

Evelyn Linden is reborn before The Apocalypse, remembering betrayal by Gordon Linden, Leo Shaw, and Mia's death. She aims to protect Mia and get revenge. She activates a Symbiotic Core needing Zombie Crystals; it causes Backlash if starved. After The Apocalypse, Evelyn hunts Zombies, eliminates Gordon and Leo. Siblings work together. Government Rescue Team arrives; she uses the core to help the safe zone defend against Zombie tides and hostile forces.