[Birth Anniversary Short Story] Tree Hole

I'm mostly a lonely person Because of my special nature, no human can see me It only takes 21 days to form a habit, not to mention that I have been alone for thousands of years and have already become accustomed to it. But it only takes a few days to break a habit You entered my world by mistake and broke my habit of loneliness. (It actually has nothing to do with the title emm