While everyone scrambles to survive the apocalypse, I turned my apartment into an SSS-rank fortress!

What the story is about

As the apocalypse devastates the city, a reclusive survivor uses his SSS-rank shelter talent to build a fortified base and recruit powerful personnel to protect and expand his community. With a ruthless strategist, a loyal soldier, and a growing army at his side, he turns survival into a contest of shelter upgrades, resource gathering, and battles against rival factions and escalating disasters.