Refining Dao Ancestor

An ordinary young man discovers that the person he spends time with all year round is not an ordinary person, and he pursues the path of spiritual practice from then on. In order to pursue the existence of the monk, he voluntarily joined an unknown force and has been behind bars ever since. Let's see how he turns around, steps into the path of spiritual practice, becomes a small person, and can also be ranked among the immortals.