The System Helps Me Achieve Immortality

System + plot flow + evil spirit + decisive killing The modern social beast Li Fusheng is tied to the body of Li Fusheng, a son of destiny from another world, whose system soul has traveled through the world. I thought I could survive and grow slowly. But the original owner not only had extraordinary spiritual roots and unparalleled aptitudes, but he also had a strange poison in his body. Trapped in a conspiracy full of doubts. Everyone wants to find out the secrets hidden in him, and everyone wants to kill him. But even he himself didn't know who it was. No one in this world of immortality can be trusted. The only thing that can be trusted is absolute strength and cultivation. Let's see how Li Fusheng uses the system to fight his way out of this tight siege in the face of adversity, rise up astonishingly, and embark on this eternal life!