High School King

The main character Kai lives in America, goes to a private high school, where he gets bullied by other boys and girls. The school doesn't do anything about it and it isn't some fiction manhwa he read where he can a blue screen with quests to get stronger. Throughout his journey dominating his school and the other schools in his city, state, country, continent and even beyond that, he meets new people, even a girl that he admires, and even some formidable opponents.