Am I Mentally Ill or a Willow Spirit?

Liu Sui is a professor of psychology at the university and a willow tree spirit who has been practicing for thousands of years. What will happen when a willow spirit that has been enlightened for thousands of years is suddenly sent to a mental hospital one day? Is this seemingly ordinary world really just what it seems? Are those legends about spiritual energy recovery, immortal cultivators, superpowers, time travelers, and system owners just legends? Have you ever thought that among the strangers you pass by on the street every day, there are mysterious powers with powerful means hidden in them? Let's go into the mysterious world together...