Lin Yue, who just won ten million in the lottery, accidentally time-travels to Great Qin two thousand years ago, getting caught up in a storm at the Qiu Sand Dune Palace. To help Qin Shihuang overcome difficulties, he accidentally binds the "Great Qin Supporting Dragon System", actually having to complete tasks and get rewards by dancing! As bizarre tasks appear one after another, Lin Yue not only changes the destiny of those around him, but also gets acquainted with historical figures like Liu Bang and Xiang Yu. When modern thinking meets an ancient emperor, what new story will this laughter-filled time-travel journey bring to Great Qin?