One Piece: Rise of the Sky Dragon Queen

Long ago, before the void age happened, before the sea's have flooded the lands, before even Devil Fruits were made, there was a mighty being that descended from heaven's above, one that was even higher than the angels themselves that ruled the sky's themselves. However, this creature wasn't just any normal being that obeyed the laws of their world, no, this creature was said to be so powerful that the very world shook from just its roar, many creatures ran in fear when they heard its roar while the inhabitants hid in their homes, fearing this creature believing it was a being sent by the gods to punish them.

Ever since it made its presence known to the world, the inhabitants gave the creature a name that would forever be known throughout history itself, the "Sky Dragon Emperor" a mighty beast that swore through the sky and passing through clouds with its long serpent-like body with its own clouds it made. This creature was said to be the king of our world, an emperor of emperors, though as time has passed the Sky Dragon started to show less and less of itself to the world as time and age was beginning to catch up to the mighty and unstoppable beast. Though not before it created a curse that was in reality a blessing in disguise, the Devil Fruit tree, the origin of the Devil Fruits, however no one knows how the tree was made or how the Sky Dragon Emperor did.

However not too long after the tree was created, the mighty beast gave out one last mighty roar before the beast was gone, vanished without a trace. No one knows what happened to the dragon that flew across the sky or what could have caused it to disappear, but one thing was for certain as a theory was made, the Sky Dragon Emperor was dead.

It has been over 400 years since it first appeared before a second one had appeared once again, but this time as a Devil Fruit user. However all information was lost to time of this period......

Until it reappeared for the 3rd time.