Prologue: Emma Starfield

Emma Starfield was adopted by a leader... not just any leader the heros' leader himself. Everyone hates the fact that she different even though their all heroes' fighting for good. They live on the planet, which they share with the villains. They're almost always constantly in battles with the each other.
Every thousand years they have a 'chosen day' where each director from villain and hero side chooses the top five in their class to challenge each other. The five that survive, hero or villain is sent into the real world to be their savior or destroyer.
Who is sent into the real world? Who knows, but along the way they discover that no one knows the truth until its been told.