I had to deal with bullies and with gangs of bullies rather a lot, in schools in various districts and in various states. Yet there was nothing like the degree of bullying shown in manga, in manhua, and in manhwa. While I certainly wouldn't claim that no school in my country has bullies like these, it was far from being as pervasive as in these stories. I wonder whether the mangaka just exaggerate, or Asia has some astonishing level of bullying.