(AN.: To some, the structure of how this high school will be displayed may seem rather strange, almost alien, though again to some (probably those that are studying under the bachelor system) would feel familiar. Yes, I am basing it on my own experience, as rather than relying on movies and circumstantial 'experience' it's best to use what I have first hand.
And at the same time, just to answer some questions I have seen come across. The current setting is based in a grim fantasy setting for a modern world society, with Greytop City and the country it resides in, are not in the US, nor the American continent.
If you think back that Aziel indeed had an encounter with neanderthals, you can somewhat approximate his current location at least to the general continent.)
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The girl next to her was her best friend as well as the class president of their junior and all the previous years. She was Sidney Rivera, the class' nerd, and generally not-too-popular studious bookworm.