Su Xin, the young master of the Su family, has the unparalleled bloodline of all time, but missed the marriage battle due to the awakening of the bloodline, and was stigmatized as a coward and imprisoned for three years. After being released from prison, he used his heaven-defying swordsmanship to crush his enemies, kill the traitorous disciples, and intercept and kill Zhao Tianlei behind the scenes. The Pang family and Prince Qi's palace are pressing forward step by step. When the Yinglong Guards attack the Su family at night, the father and son work together to save the family in a bloody battle. In order to seek shelter, Su Xin went hunting in the imperial city, washed away three years of humiliation with one sword, and defeated the royal genius to reach the top. After entering the Tianyan Palace, he received the guidance of the Taoist master and discovered the true meaning of the sword. He successively resolved the plots of the sect and went out to practice and kill all the evil enemies. Step by step, he mastered the supreme swordsmanship, cut off all the enemies of the royal family, and reached the top of the Kyushu sword.