Rio, who works at a construction site, is a tough-minded woman who behaves bravely in a male-dominated world. However, Rio's strong-willed nature, never wanting to be outdone by any man, and her old-fashioned boss, Ichihara, who tells her, "Women shouldn't tell men what to do," always lead to conflict. Today, as always, the two clash on the construction site, but a desire that Ichihara has been suppressing for so long is ignited...