Who Can Defeat an Immortal with One Sword?

I, Jiang Xuan, was once the genius of the Nine Heavens Dao Slayers, but I was deprived of my Dao marks in public, knocked down from the mortal world, and reduced to a useless person. They said that my Dao foundation was completely destroyed and I was not worthy of being in charge of cutting Dao. When I was on the verge of death, I glimpsed the first sword intention in the world, and realized the true meaning of killing the Tao - killing the Tao is not killing love, and killing the sky is not killing oneself! Three months later, my enemy Gu Changyuan will come to the lower world in person and seize my inheritance. The wine Taoist made me a bet: cut off three heavenly veins in Shizhou, and then he would tell me how to fight against it. If he couldn't do it, he would hand me over with his own hands. I hold the sword again, cut off the foundation of the path, and kill all the pursuers with one sword. Starting from Cangwu Continent, I cut off the heavenly veins and shattered the rules. I was an ant in the past and will make the Nine Heavens tremble. They practice the path of killing love and enlightenment, but I want to protect the way of love and kill it. Brothers and lovers are all the reasons for me to fight towards the sky. This sword is called "Zhan Dao" - cut off all injustice in the world!