Nao Kanzaki, a college student known for her naively honest nature, unwittingly enters the ruthless 'Liar Game' after receiving a mysterious package with a massive cash prize. To avoid a lifetime of debt, she turns to the notorious con artist Shinichi Akiyama for help. Though initially reluctant, Akiyama eventually agrees to aid her, delving into a world of deception where their own agendas intertwine with the game's dark realities, revealing the true faces of all players involved.