No one knows my dad, but his legend has been circulating in the business community. Rising star Brady, who built his company from scratch, is stunned to encounter his father, Carl, working as a security guard at an elite banquet. While everyone assumes the host is lenient due to Brady's influence, his father's antics repeatedly embarrass him. What no one knows is that this seemingly unrefined man, who disregards high society's norms, is actually a retired business tycoon who once ruled the business world.