[The Rebirth of the Strong in Doomsday]. This book described how Li Yi found a piece of iron on the internet and accidentally activated the energy in the iron piece. When he woke up, he found that he had been reborn and transmigrated to another world. The old civilization of the reborn world used energy stones as energy sources. After the virus outbreak, humans built a city wall to resist the zombies. The main character did not have an advantage, but with the help of energy stones, armor, potions, and his own hard work, he relied on the evolved Battle Aura and wisdom of humans to struggle in this post-apocalyptic world. I hope you like my recommendation. Muah ~