Rebirth at the End of the World: I Bring Zero-Dollar Shopping Around the World

In my previous life, when the apocalypse came, I spent all my resources to support the base. However, after the supplies were exhausted, my dear stepsister and ex-boyfriend personally pushed me into the roaring tide of zombies and became the zombies' ration. Full of resentment and unwillingness, my consciousness returned to the three months before the apocalypse broke out!