It Was Promised That the Path to Immortality Would Be Open, but How Could We Water and Grow the Flowers?

Xu Cheng originally thought that he was the son of destiny, and he experienced time travel and near-death adventures, and he was lucky enough to sneak into the immortal giant Xuanjian Zong. But he soon discovered that something was wrong with the script. The spiritual roots are broken, the cultivation level is blocked, the eyes of the big guys are weird, and there is a strange and deadly poisonous flower buried in the body. Others cheated all the time in cultivating immortality, while he failed all the way in cultivating immortality. Either keep a low profile to save your life, or you are forced to keep a high profile and commit suicide. Until an adventure in a secret realm, he accidentally triggered the taboo power hidden deep in his body, and glimpsed a horrible memory that had been erased... The peerless demon king "Wuxian Jie Zun" who once devoured the world and made immortals and demons tremble seemed to have an endless fateful entanglement with his broken body. To become a chess piece and meekly move toward a predetermined end? Or should he overturn the chessboard and make his own way on this immortal road full of murders and calamities? "They say I am the demon king who has returned? Okay, then I won't pretend. But who said that when I return, I have to act according to your script?"