The sunny talkative school bully (sufferer) x the mysterious laughing time traveler (attack), this book is a campus novel at the beginning, and there will be some hints in it. The ending will be sweet, but there are also knives involved, so please read with caution and don't criticize if you don't like it.
Purpose: When you feel that you are meaningless, please firmly believe that someone will pull you out of the abyss. Of course, that person may also be yourself.