When Zhulong glimpsed the future of the dragon clan becoming the slaves of heaven during the Great Luo Jinxian Tribulation, and rolled back the long river of time and space, the prehistoric chess game suddenly changed. He used the Chaos Orb to cover up the secrets of heaven, reshape the foundation of the ethnic group before the Longhan Tribulation, and set up a cause and effect puzzle between the Phoenix Clan's Nirvana True Fire and the Qilin's Fury. Facing Hongjun's shackles of heaven and Luo Hu's god-killing formation, he burned his blood essence to cast a space-time anchor, allowing the dragon warriors to reincarnate and fight again in the "Eternal Twilight" realm. Every petrified scale is the price of changing one's life against the will of heaven, and every jump in time and space sets off a wave of cause and effect. When the Demon Ancestor's Immortal Killing Sword Formation tore apart Buzhou Mountain, and when the secret of Hongjun's harmony turned into a chain of prisoner dragons, Zhulong ignited the origin of the Chaos Pearl at the cost of his whole body being petrified, and erected an everlasting inverse scale lighthouse at the end of the long river of time. This is an elegy for the dragon clan's counterattack, and it is also an eternal legend of a time guardian's game with heaven - when the last piece of reverse scale merges into Hongmeng's placenta, the dragon's roar from all over the world will forever echo in every morning and dusk of the prehistoric times.