Doomsday Disaster: I Will Be the Villain This Time

(Apocalypse + Rebirth + Space + Completed) After an epidemic swept the world, the zombie virus broke out in full force. When the end of the world comes, the heroine is unfortunately pushed out to fend off the zombies, and eventually turns into a zombie and is killed. After his death, he discovered that he was just a little transparent creature in a novel, and he only started the game to give a crystal core to the heroine of the novel. I was reborn and returned to half a year before the end of the world. I tied up space, gathered supplies, relied on cats to get crystal cores, and lived a miserable life in the end of the world...