A salaryman whose life is anything but ordinary, Kintaro continues to battle his office enemies and remain on the side of right in the fourth volume of this popular, manga-based series. Formerly a biker gang member, Kintaro turned his life around when his girlfriend died in childbirth, leaving him with a small child he must now care for. He became an employee of the Yamato Construction Corporation, and has been learning how to adjust to his new lifestyle ever since. In this installment, some people find Kintaro's success unsettling, and he is transferred to a department under the leadership of Chief Igo, in whom Kintaro may have met his match.