“I don’t wanna work!” is Kinji Ninomiya’s mantra. He worked hard to make his dream of becoming a professional loafer come true and is now able to live a cushy life off of his investments. However, he is unexplainably transported to another world right at the very moment he is ready to begin his idle life. He arrives in a labyrinth-like workplace run by an evil corporation.

His leisurely life completely changes in an instant and every day he is forced to do physical labor, shedding blood, sweat and tears in a mine that was once called “The Dungeon.” The worksite is a harsh environment with long hours and low wages. And on top of that, he is harassed by his boss, exploited, and brainwashed into thinking his job is rewarding. He’s now stuck being what he used to look down on—a corporate slave.

However, Kinji is not going to just sit there and take it! He’s determined to get his perfect life of leisure back by any means necessary, using his craft and cunning to tenaciously climb the social ladder.

This is the indomitable story of a prideful and highly unconventional young man who just doesn’t want to work anymore.