The Father Theory

This theory affects Saikou and all of his brothers, dead and alive. Originally, there was one. Primus, the Creator. Then, he created The Table, to watch over the Earth, and all of its continents. Primus then created 6 powerful beings, even more powerful than The Table. He gave the six beings to The Table, and he watched them grow into men. In correlation to this, Primus' ability to co-exist with Orion means Orion is also all 6 brothers' father, because Primus IS technically in control of Orion.