There is a divine sword in the martial arts world called the 'Xuantian Sword'. Whoever obtains this sword gains the world, and various sects in the martial arts world have been constantly arguing over it. Until the head of the Famous Sword Sect, Ma Xiaotian, dealt a heavy blow to Yan Po of the Ghost Valley Sect and seized this swordCut the dust to settle. Ma Xiaotian wanted to pass on the position of leader to his disciple Lu Jiu and hand over the Xuantian Sword to him. Unexpectedly, Ma Xiaotian was suddenly killed, and the Xuantian Sword also disappeared without a trace. Lu Jiu was mistaken for the murdererBehind the cut lies a huge conspiracy How can Lu Jiu clear the suspicion and avenge his master? Who is the mastermind behind the scenes?