Kinji was once the kind of man who seemed to have escaped ordinary life. While others worked themselves to exhaustion, he built his fortune through stocks and real estate, proud of having become rich without ever being trapped by a daily job. But that comfort vanished in an instant when a portal ripped him out of his shower and dropped him into Amoria, a fantasy world where the age of heroes was long gone and dungeons had become corporate mines for demonite. With only his underwear and a mountain of debt, he was forced into labor under the ruthless hierarchy of Aha Mining Corporation.