The history presents four Divine Dragon King, each with its kingdoms: one north, one to the east, one south and one to the west. The brothers are reborn in the modern world with supernatural abilities and the ability to become dragons from which they descend. They are satisfied with the fact that they live by the usual life until evil creatures come to attack them. It becomes a mission of four brothers to defeat the "four sisters", four girls America and descendants of the "bulls" before they use their control over technologies and economics to capture the world. However, having started this battle, four brothers should also find their place in the world, fleeing the devastating will "Bulls".