Well its korean what did ya expect, most of the times the manhwa made by them have this kind of plots where they are the most superior and others are either villians or super beta.
well japan did terrorise them (and other countries)
Korean and their superiority complex lol
It's not a superiority complex. That side of the world has constantly been at war, cultural exchange, and rivals.
Japan has invaded and taken control of Korea on 2 significant occasions. The history between them is long and harsh. Their people still remember the pain and usffering they had to go through.
(●￣(ｴ)￣●) Another comic that brings in politics. How convenient that the villain happens to be from Japan.