Skill "World Tame" ni Mezameta Ossan wa Dungeon de Seikei wo Tateru Koto ni Shimashita: Mushoku kara Hajimeru Shihai Musou

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.

(Source: Kodansha, translated)