
As far as I remember, it was stated on the last page of the first chapter that the tail is an allegory. It's an example of how harmless differences still disturb those who find comfort in conformity. And fears that not everyone is the same as people believe it to be without even bothering to extend the courtesy of knowing their surroundings or, simply put, they are bereft of open-mindedness. English is not my first language so I hope it makes sense. (●'◡'●)
Yaall who has raws huhu, the link that I have is not updated :(
Same
https://boylove.cc/home/book/index/id/11928