Doomsday Frenzy: I Have a Floating Fortress

The apocalypse game descended, and a global zombie crisis erupted. The whole world became a hellscape of plunder and slaughter. The strong survived; the weak died. Shen Mingfeng, a transmigrator from Earth, was weak and became the lackey of a powerful Esper. He worked like a beast of burden, just for a few scraps of food. After finally saving enough points to secure a spot in an official shelter, all he got was a devastating flood. He realized it had all been an official government scam! The disaster had only just begun, and there was no such thing as a shelter. Shen Mingfeng, who should have become a drowned ghost, lived again and accidentally activated a hidden bonus in the apocalypse game, obtaining the world-class item, Floating Throne! An F-rank ability is useless? The item's passive effect boosts it tenfold! Become the Man of Steel. Fifty Gatling guns loaded with armor-piercing rounds are supposed to kill me? Sorry, the throne lets me teleport away. A flood is coming and there's nowhere to run? No problem, unlock the throne's new feature: change forms into an aerial fortress! From then on, he could live in a sky-view apartment. Mom wouldn't have to worry about me being unsafe on the ground anymore. Shen Mingfeng swore that this time around, he would take back everything that belonged to him! The blurb doesn't do it justice. Please read the novel.