Time Reversal: From the Start, I Build a Traplike Steel Fortress

[Apocalypse + Rebirth + Stockpiling Supplies + Mobile Shelter + Farming and Lordship] When the apocalypse arrived, zombies filled the city streets and formed a new civilization. Humanity had no power to fight back and was reduced to livestock raised for meat, trapped in zombie-planned pens, living in a daze with no hope of seeing daylight. Gu Cheng reversed time and was reborn. Drawing on his memories of his previous life, he stockpiled tens of thousands of tons of steel, determined to build the strongest mobile steel fortress humanity had ever seen. When rows of zombies charged forward, hoping to capture his residents as blood food, he was running short on crystal cores anyway. Gu Cheng smiled and opened the gates of Steel City. He even put up a banner, determined to provide zombies with a streamlined, assembly-line life-service experience. The service is so good that not a single zombie has ever had a bad word to say about it. “When will Dawn City get here? I heard housing prices have gone up again. I hope they won’t be too high when it reaches us.”, Eagerly awaiting its arrival from a zombie-occupied zone “Dawn City passed right by me once, and I didn’t get on. Now I can only run after it as fast as I can.”, Bro, I never got on board “That human city is absolutely terrifying. None of the brothers who went there ever came back. Boohoohoo~”, Testimony from a victimized zombie