Manipulation Games of the Black Nobility at St Sebastian's Academy

After being accepted to St. Sebastian's Academy for Nobility I, Higasa Ryunosuke, have been placed in the bottom of the school's ranking due to having no public standing. The bottom 20% of students are expelled every year until only the cream of the crop remain by graduation. My family is part of the Black Nobility, the ones who really pull the strings of all world leaders and events. If I can't manage to control them while they're students how can I call myself Black Nobility? I'll control the entire academy, reach the top and prove I have what it takes to control the world.