I Didn't Want to Travel Through Time! Why Did You Drag Me Here?

Xiao Chengfeng was originally an ordinary person, but he was pulled into a world of immortal cultivation by a strange force while dreaming, and became a low-level mining slave. He thought he would stay in the mine forever, but an accident caused him to escape from the mine. But he fell into the hands of a "master" who was greedy for his soul. Fortunately, he was saved by a colored gemstone given by an old man.