General Qin Siyue was framed and accused of a crime by the prime minister, leading to the exile of her entire family. However, through an accidental opportunity, she achieves shuttle travel between two realms. To ensure her family can live a good life and to clear her own grievances, she becomes the bodyguard of modern CEO Shen Yu. Meanwhile, Shen Yu has actually secretly been in love with the female general from a thousand years ago, Qin Siyue, for a long time. Thus, the two collide constantly with endless misunderstandings, and amidst comedic and absurd situations, their two hearts grow closer and closer.