Sentoki no Yume (Dream Fighter)

For as long as anyone can remember, there have only been three types of Tenshi. Those with brown wings were the working class, those with silver wings were the intellectuals and those with white wings were the aristocrats. This order was never disturbed and everyone stuck to this way of life. They always assumed that the way their wings were marked would always determine the way their lives needed to be lived. So what happens when a Tenshi shows up one day with raven black wings?