Celeste Quinn, an ancient female general, was framed by treacherous conspirators, and her entire family was sentenced to exile. She gains the ability to travel between two worlds. To give her family a stable life and clear her name, she travels to modern times and becomes the personal bodyguard of CEO Shen Yan. Shen Yan has been silently caring for her for a thousand years. As the two experience constant clashes and misunderstandings, their hearts gradually grow closer.