A former gang leader in a suit fighting corporate corruption from the inside, Kintaro doesn't pretend the system can be reasoned with. He breaks it the only way he knows how, fists first, and discovers that loyalty and raw integrity are worth more than any executive playbook. The show swings between sincere workplace drama and absurd action sequences without apology, treating a salaryman's sense of honor with the same weight as yakuza territory wars.
A reformed gang leader steps into the corporate world when he saves the wrong person at the right moment. Kintaro trades his motorcycle for a business suit, landing at Yamato Construction with nothing but street smarts and raw determination. The company's executive sees potential in him, but corruption runs deeper than anyone anticipated. Shadowy players within the organization scheme to seize control, and suddenly Kintaro's fists become more valuable than any MBA. As Kintaro climbs the ranks, he discovers that the business world plays by different rules than the streets, though both demand loyalty and courage. He faces yakuza threats, engineering disasters, and corporate sabotage. His education is nonexistent, his manners are rough, and his instincts are dangerously direct. Yet his unwavering sense of right and wrong cuts through boardroom politics like nothing else can. Can a rough-edged outsider truly belong in a world built on credentials and connections? Salaryman Kintaro asks whether character matters more than polish, and whether one person's conviction can actually change a broken system.