Starting from the System of Cultivating Immortals

Mediocre qualifications? I have a system that can turn useless elixirs into spiritual stones. Pursued by enemies? I have a formation, and the foundation-building monks can also show it to you. The road to immortality is difficult and dangerous, but those who travel cautiously can reach the far end. This is a story about a mortal who takes every step and finally embarks on the path to immortality.