In the era of warlord chaos, a nine-year-old girl named Yuhuan witnessed her biological father being defeated and killed by the warlord Zhang Tianxin, while her mother died with lingering hatred. From then on, Yuhuan and her brother Baishun grew up under the care of Tang Xue Ren's family, an old subordinate of their father, but the indelible family feud remained forever etched in her heart. Twelve years passed, and the warlord Zhang Tianxin rose from army commander to a great lord, becoming more powerful and increasingly difficult to approach in front of the weak woman Yuhuan. However, Yuhuan relentlessly moved closer to her goal according to her own plans, having tasted the sorrow of the world. Just as her desire for revenge was about to come to fruition, the Japanese Kwantung Army invaded Northeast China. Zhang Tianxin, a warlord who spent his life walking on the edge of a knife, rejected the Japanese offer to bribe him, leading to subsequent internal and external troubles that left him overwhelmed. At this time, Yuhuan had the opportunity and capability to assassinate Zhang Tianxin, but faced with the choice between family hatred and national resentment, Yuhuan resolutely chose the path of national salvation.