Yin Jingwan, a young woman from a wealthy merchant family, saved a young man on a train who was escaping from a rivaling warlord manhunt. When she returned home, her parents betrothed her to a childhood friend, but her fiancee was put into prison in Chengzhou for smuggling firearms and illegal Western drugs. Jingwan decided to go to Chengzhou to rescue her fiancee. But she did not know, this trip would completely change her life.