Two hundred years ago, on the Battlefield of the Blue River, the last remaining army of the Empire of Light collapsed in the midst of demonic outcries. As the last Field Marshal and Emperor fell, the chaotic world of the Western River no longer had a common ruler. Factions were formed and endless conflicts ensued, military might became the only currency of survival, and the dream to reunite the lands became the sole goal of many rulers in the generations that came after. In the south-eastern part of the land, a powerful faction with over two hundred years of history – House Zichuan – fought off the Demons to the east, defended against the House Liufeng to the west, and contained the House Lin to the south. In order to accomplish their great ambitions and extend the bloodline of their family, countless heroes of Zichuan gave their lives in order to make this magnificent hymn come to life. This is a story about this legendary family and a hundred years of their blood and tears.

Lin Fan, who was born in a noble family in Dalin County, was originally a peerless genius who was awarded the Tianjiao Order, but his martial soul was taken away by his fiancée, and he became a waste. When a mysterious demon parasitized Lin Fan and reactivated his abandoned martial soul, making him a rare dual martial soul physique, Lin Fan officially embarked on the road to rise, from a small county town to the heavens and the worlds.

The Yellow River, Yangtze River, and Lancang River originate from the same source, and three families known as "Water Evils" (Ding, Jiang, and Yi) live along the river. What are "Water Evils"? They can move freely in the water and possess the skills of geomancy, feng shui, and treasure hunting. Yi Sa, the last Water Evil of the Yi family, runs an "underwater bank" business along the Lancang River. During a "Golden Fortress" excavation, Yi Sa encounters and saves Zong Hang. To uncover the truth of what happened and to save himself, Yi Sa trains Zong Hang to become a professional Water Evil, and together with Ding Yudie, a Water Evil from the Ding family, the three enter the "Ancestral Golden Fortress."

Ji Miaomiao, a young woman just starting her career, is betrayed by a friend and left with a mountain of debt. While fleeing from ruthless debt collectors, she accidentally falls from a building. On the brink of death, a mysterious figure transforms her into a cat. By a twist of fate, she ends up being adopted—by none other than her own boss, Lu Chengze. Thus begins her strange and magical 100-day life... as a cat.