Blackened Zhang Tie: I Stain the Sky with Demonic Blood

Coming from a time travel, were you surprised? Unexpectedly, he came to the world of mortals cultivating immortals. What surprised him was that he was Zhang Tie, who was Han Tianzun's assistant in the early stage of his growth. What was unexpected was that he had now joined the Qixuan Sect and became the ruthless disciple of Mo Xuren. Good guy, this is the inevitable outcome no matter what. Even if you want to escape, you still have to worry about whether Mo Xuren has poisoned himself? Isn't it just poison? I learned from Lao Tzu, practiced poison skills, learned demon skills, used poison to fight poison in order to save myself, used poison to train the body, and created a hundred-poison demon body...