An Eternal Technique

Chen Shu, the eldest son of the Chen family, was born with useless spiritual roots. His engagement was broken off, he was ridiculed, and he was expelled from the family. After his mother was brutally murdered, he accidentally obtained a mysterious ancient book - the Book of Cause and Effect. That was the life-changing thing sent by me ten thousand years later across the long river of time. At the cost of longevity, you can kill all the strong men in the world! One move: Cutting Thoughts, one year of life, and a smaller realm! The second style: soul-killing, ten years of life, reaching a greater realm! Three moves: Cutting off fate, fifty years of life, transcending two realms! "As long as I can avenge my mother, why not lose my life?" Let's see how the boy with useless spiritual roots cuts through the sky with the Karma Blade and makes the fairy world tremble!