His company vanished overnight—leaving him jobless and broke.
But what he gained… was the ultimate skill to dominate all living things—monsters, humans, everything.

In modern-day Tokyo, buildings suddenly transform into monster-infested labyrinths.
As “Dungeonization” sweeps across the city, one former salaryman rises with a skill no one can match.

A true dungeon fantasy—where survival means taking control of the world itself.