Who is the youngest high school student?

I'm curious to know, could you please elaborate on who exactly is the youngest high school student you're referring to? Are they a prodigy who skipped grades or perhaps an exceptional case due to some unique circumstances? And if so, what kind of achievements or skills have they demonstrated that sets them apart from their peers? I'm fascinated by the idea of a young individual excelling at such a level and would love to learn more about their story.