Zhang Xuan, a gentle and considerate courier, accidentally activated an AR system called "Historical Awakening". The system turns the entire city into a grand battlefield. He can scan real buildings with AR eagle eyes, discover hidden historical barracks, summon Emperor Kangxi's Eight Banners cavalry, and even unlock Gundam mechas to sweep across opponents. But he is not the only player in this world. Hidden powerful people have already occupied the top resources and regard ordinary people as cannon fodder. When his childhood sweetheart was bullied by a son of a wealthy family, Zhang Xuan, as a commoner, used his eagle eyes to predict the trajectory of all the opponent's attacks, summoned the Dragon Flag Army Formation and Divine Mecha of the Kangxi Dynasty, and defeated the arrogant family alliance three times in a row on the AR battlefield. From an unnoticed young man at the bottom to a new king who controls the dual power of history and technology, he steps on the shattered pride of his enemies every step of the way. He eventually reflects virtual hegemony into reality, protects all the people he cherishes, and uncovers the huge secret behind the system that connects ancient and modern times.