The Great Xia Dynasty has stood for three hundred years. Great clans are everywhere, and the emperor shares rule over the realm with the powerful families. In the martial world, those who awaken supernatural abilities through spirit veins and command wind, fire, thunder, and lightning are regarded as Heaven's chosen, and most come from distinguished families. Twenty years ago, the Duke of Zhen's entire household was framed and executed, leaving his orphaned heir to grow up among common folk. At the same time, Yun Zhao, the legitimate daughter of the Chancellor's household, was switched at birth. The real daughter ended up in a remote border town, where she grew into a fierce and ruthless young woman, while the fake heiress enjoyed a life of luxury in the Chancellor's residence and became renowned in the capital for her gentle, virtuous nature. At sixteen, the true heiress Yun Zhao awakens a thunder spirit vein, breaking free of the constraints of her fate and being forced into the political struggle at court. Crown Prince Xiao Jingheng, investigating an old case from years ago, secretly sets his plans in motion, and his fate becomes entangled with Yun Zhao's. They go from using each other to falling deeply in love, yet repeatedly wound one another amid mistaken identities, blood feuds, and political machinations. Secret realms of the martial world, ancient imperial tomb formations, and invasions by foreign tribes erupt one after another. As the truth is revealed layer by layer, love and hatred cut like knives, tearing at their hearts. This is a tale of lives misaligned by fate, and a tragic love song about two souls who save and destroy each other amid an age of chaos.