“Mortals can also become immortals”

A white-haired old man looked at a young man in front of him and gently stroked the boy's head. The boy lay on the ground with his eyes closed, his body trembling and his expression excited.

The path of cultivating immortals is to seize the opportunity, defy the yin and yang of life and death, and master the universe. Let's see how the protagonist enters the Tao with blood by chance and gradually understands the truth of this world. (No heroine, no saint, decisive and dark story!)