Kintaro Yajima, the former head of the runaway group Hachishu Union, was a fisherman with Ryuta, a forgotten keeper, in the hometown of his late wife Akemi. One day, Kintaro joined Yamato Construction as an apprentice employee after saving Yamato Construction's chairman, Morinosuke Yamato, who was drifting in an accident. Yamato Construction, where Kintaro joined the company, was dominated by the domineering President Oshima, who had descended from bureaucrats, and Chairman Morinosuke and Managing Director Kurokawa, who had been a slammer since the company was founded, were forced to resign. Impressed by Kintaro's bold actions, which are not bound by the framework of a salaryman, Yamato Construction employees start activities to save Chairman Morinosuke from his resignation.