Salaryman ga Isekai ni Ittara Shitennou ni Natta Hanashi

Uchimura Dennosuke lived the unremarkable life of a typical Japanese office worker, his days defined by routine and paperwork. That ordinary existence comes to an abrupt end when an overseas work assignment in Vietnam leads to tragedy—he is killed in a hit-and-run accident. But death is not the end of Uchimura's story. He awakens in a fantastical other world, summoned into the presence of the Demon King himself. Instead of meeting a grim fate, the mild-mannered salaryman receives a startling job offer: a coveted position among the Four Heavenly Kings, the elite generals who command the Demon King's army. Bound to a proposal he can scarcely refuse, Uchimura must now navigate a realm of demons and warfare armed with nothing but his corporate experience. The question remains—can an ordinary salaryman truly handle the responsibilities of one of the Demon King's mightiest lieutenants?