D Genesis: Dungeon ga Dekite 3-nen

Three years ago, a failed experiment at Area 51 triggered the sudden emergence of dungeons across Earth. Now, everyone from ordinary civilians to trained soldiers ventures into these monster-infested labyrinths, driven by the promise of wealth, power, and magic. Keigo Yoshimura, however, has no interest in adventure. As an unassuming office worker, his only ambition is to quit his job and live a life of absolute ease. But fate intervenes during a routine business trip when he accidentally witnesses the birth of a new dungeon and acquires a unique magical skill that transforms subterranean exploration into something resembling a video game. This unexpected ability rapidly spirals out of control, propelling the reluctant salaryman to the rank of the world’s foremost explorer. Teaming up with Azusa Miyoshi, his mathematically brilliant colleague and new business partner, Keigo devises a plan to leverage his RPG-like status screens for massive financial gain. Yet his dreams of a quiet, profitable retirement are quickly shattered as his unprecedented success draws intense scrutiny from military forces, government agencies, and far more sinister organizations. Instead of taking it easy, Keigo finds himself entangled in a dangerous web of global attention he never asked for.