After Rebirth, I Work as HR in the World of Immortality

HR social animals travel to other worlds to cultivate immortality. They don't have a great background or almighty golden finger. They just have a head full of human knowledge. Watch him lead Tian Yuzong to take a different path step by step using modern human knowledge, and muddy the waters of the world of immortality step by step... Little did he know, there was "someone" in the dark watching his whims...