C28 Ten days later the great flood and the great calamity

The Demon Emperor Di Jun and Eastern Emperor Taiyi were in closed door cultivation for a long time as they tried to comprehend the 'Grand Star Revolving Array'. The two of them were extremely intelligent people, and had finally figured out the key to operating the formation, and imbued all of the trajectory of the three to five stars in the battle into the 'River Diagram' and the 'Luo Shu'