Modern elite doctor Xu Qin comes to Daqian, becoming Duanmu Xuqing, the sickly legitimate daughter of the Imperial Hospital official whose family suffers a tragic house raid. To avoid disaster, she continues her disguise as a man, staging a miraculous comeback relying on divine medical skills and a system. In times of crisis, the God of War Prince Long Jingxiu saves her, having long seen through her female identity while silently protecting her. While curing the sick and saving lives to build up her strength, Xu Qin thoroughly investigates her family's wrongful case, shatters the conspiracies of the Imperial Noble Consort and others, ultimately clearing the Duanmu family name, running towards a mutual bond with Long Jingxiu, and receiving a bestowed marriage for a complete happy ending.