Poison-Eating Immortal Pearl

[Traditional cultivation of immortality + funny + shady + no system + no time travel] He was tricked into going up the mountain at the age of thirteen, and he survived in hell at the age of sixteen. Han Changkong once thought that if he met a famous master, he would be able to live forever by following the path of immortality. Who would have thought that stepping into Qingwu Ridge would mean falling into the most terrifying poisonous prison in the world! There is no immortal method, no practice, and no great way. He was just a living medicine cauldron used by an old monk on the third level of Qi Refining. For three years, he was tested for poisons every day and cut into pieces every night. His skin and flesh were ulcerated, the poison invaded his five internal organs, and he suffered the most extreme torture in the world. [The realm of cultivating immortals: Qi refining, foundation building, golden elixir, Yuanying...]