What happen in the end of konoha high school?

There's no definitive "end" to *Konoha High School!* It's a gag manga (a comedic manga) with short, self-contained stories. There's no overarching plot that concludes. Each chapter is a different humorous slice-of-life situation featuring the Naruto characters in a high school setting. The manga ended without a final, climactic event. It simply concluded its run after a certain number of chapters.