The name "Demon Cockroach" is homophonic to the devil's barrier, which is the obstacle set up by the devil in Buddhist terms.
It refers to the obstacles in the mind. Cockroach also refers to cockroach. I believe it is a pest that everyone finds disgusting.
The author was attacked by a large number of cockroaches during the summer vacation and hated them so much that he wrote the article.
The most terrifying thing in the world is not the weird ghosts, but the sinister human heart.
Conception: