Is it wrong that I want to play this? Like, hardcore?
Quick, somebody make a system that caters uniquely to the premise.
Maybe an AW hack that goes through all the TV-tropes Mary Sue subtrope pages for playbooks?
Maybe just Best Friends? Like, not even hacking it, just adjusting the 'school girls' premise slightly?
Or maybe something entirely novel, a special unique snowflake whose beauty nobody truly appreciates? Unless....