Joukyou Afro Tanaka

Tanaka was living at home in Saitama while working as a truck driver. Then, when his company's CEO tells him to "Go to Tokyo", he suddenly finds himself in a wildly different job, a civil engineer digging tunnels in the depths of the city. With a grueling 8-hour shift, and only a soak in the public bath to cool himself down, is Tanaka's new life really what he hoped it'd be..?