Time Travel Ends in Regret

Jiang Ning and Lu Cheng meet a car accident on their wedding day and travel back to ancient times. Lu Cheng promises Jiang Ning to be her sole partner for life, but three years later, he brings back Liu Qingqing, intending to make her his official wife while demoting Jiang Ning to a concubine maid. Taking advantage of his general's status, Lu Cheng treats Jiang Ning with constant cruelty. Unbeknownst to him, Jiang Ning is about to return to the modern era with him.