ALERT!Possible spoilers ahead!

Noah's Ark was not only carrying thousands of passengers onboard but also a weapon of mass destruction called "Deus".This weapon is basically a planet killer. During the trials, they found that they could not effectively control Deus, so they broke him down to his basic elements, before packing him up and shipping him off on the starship, to send him into deep space.Thus,Noah's Ark was given the responsibility to do just that.

The mysterious "thing" that attacked the Noah's Ark was actually Deus.After awakening,Deus tried to unite his parts to make himself whole again.He succeeded in taking over the ship and tried to navigate them back to their original homeworld.Every human on board the ship was destroyed after failing to escape in the escape pods.Upon seeing the awakening of Deus,the captain of Noah's Ark had to sacrifice his own life and the whole ship by blowing it into bits.The remains of Noah's Ark and Deus fell to a nearby planet.

There is only one survior from the crash, the original man who is the first ancestor of "Fei". Dues knows he is uncapable of uniting all of his "parts" scattered throughout this new world without help.So he used the genetic code (DNA) of this survivor to make another being, the young woman with purple hair who was seen in the ruins of Noah's Ark.She was known as "The Mother".She gave birth to at least 5 children, those being called the "Emporer" and the "Ministry".

Over the next 10,000 years, the original 5 tried to manipulate the world and its inhabitants into helping them bring the parts of Deus back together so he may be "reborn".This what they claim by resurrecting the God. They do this through caste systems and religion. They try several times, and meet with failure. Which brings us to the present, where they are trying once more.