After centuries of animosity, a fragile peace existed between these two clans in order to end all the deaths and losses both sides suffered during the wars. For centuries, earth humans and the winged humans battled for supremacy. The winged clan was considered more superior to the earth humans due to their flying ability and possession of flight technology. Rewatch Value 6.5 Story: Long long ago, there lived two clans of humans - those who can fly and those who can't.