D Genesis: Dungeon ga Dekite 3-nen

Synopsis

In a world irrevocably changed three years after dungeons appeared, humanity now coexists with monster-filled labyrinths, seeking fortune and power within. Keigo Yoshimura, a salaryman dreaming of a peaceful retirement, accidentally triggers a hidden power, rocketing him to the top of the world rankings. Gaining RPG-like stats and a mysterious "D-Card," he partners with the resourceful Azusa Miyoshi to navigate the monster-infested landscape. Together, they aim to capitalize on Keigo's newfound abilities in the dungeon exploration market, but their journey attracts unwanted attention from powerful organizations and shadowy figures. Can they build their empire and attain a life of leisure, or will the dungeons' secrets and the world's hidden agendas consume them first?