Li Ruo, born in the slums, is picked by the reborn female lead Xia Qinghe as a stand-in and sent to an elite academy. Her mission is to draw the attention of six maniacs who tortured Xia Qinghe to death in her past life. But Li Ruo is no helpless pawn. Faced with a violent school bully, a controlling student council president, a yandere painter and other dangerous men, she fights back, teases them cleverly and tames these ruthless figures in turn. When the human shield becomes the centre of the whole school, and even captures the female lead’s present-day white moonlight, this stand-in game spirals completely out of control.