Six years ago, Lin Wanqing, unable to bear an heir and thus ineligible to take charge of the hundred-billion-yuan conglomerate, was framed by others. By chance, she had a one-night stand with a homeless stranger—unbeknownst to her, this stranger was Gu Chengyuan, the mysterious Lord of the Dragon Army. He commanded 100,000 Dragon Army soldiers to defend the nation, yet his own family had been wrongfully persecuted. Living incognito as a homeless man, he was secretly investigating the truth, never imagining that he would have such an encounter with Lin Wanqing.Six years later, the beautiful female CEO tracks down Gu Chengyuan with her twin daughters and proposes marriage, hoping to legitimately take over the group. Gu Chengyuan helps Lin Wanqing resolve her crises, while Lin Wanqing also steps in to support him. As they stand by each other, Lin Wanqing gradually learns Gu Chengyuan’s true identity, and Gu Chengyuan finally uncovers the truth behind the injustices of six years ago.