Qi Yue and Cheng Yan's marriage had long been nothing but a formality. He was consumed by his career, while she was exhausted from keeping up, and they drifted further and further apart. Then, after an argument, they accidentally touched a mysterious bronze mirror in an antiques shop and transmigrated to an imaginary ancient dynasty.
There, Cheng Yan became the “Black Cloud Cavalry” general who had been missing for three years, while Qi Yue was “Madam Cheng,” a highly skilled physician. The villagers both feared and felt unfamiliar with them. Stranger still, their bodies seemed to remember everything: Cheng Yan instinctively mastered martial arts, and Qi Yue's silver needles could bring the dying back to life, as if they had always belonged in this era.