There was nothing much to say about dealing with the Water Demon Beast.
Fang Zheng had beaten it into submission in no time ten years ago, and it was the same ten years later. He smashed the Water Demon Beast so hard it could not lift its head, then the Witch Queen and Zhao Ling'er immediately stepped forward and used the secret arts of Nuwa's bloodline to restrain it. The principle behind Nuwa's bloodline subduing the Water Demon Beast was actually simple: the beast revived whenever it encountered water, so they first had to manipulate the elements to sever its connection to Water Elements, then seal it away.
The process sounded simple enough, but it consumed an enormous amount of power. After all, the five great elements in this world circulated and fused together. Without Nuwa's abilities, separating something from the five elements was nothing but a pipe dream. That was why only Nuwa's lineage could restrain the Water Demon Beast.
After severing the Water Demon Beast's connection to Water Elements, Nuwa's bloodline would use its immense power to completely break it down and return it to the earth. That was the true reason why the Witch Queen and Zhao Ling'er had both perished in the past. A technique resembling "elemental decomposition and return" was an authority that only gods possessed. The Witch Queen and Zhao Ling'er were descendants in the end. Even with Nuwa's blood flowing through them, they were still mortals—at most, demigods. Their bodies could not support an operation of that level.
Hecate of the Flame Haze World had been the same. In terms of strength, she had been even stronger than the Witch Queen and Zhao Ling'er, yet she had been unable to complete the Unfettered Realm on her own. In the end, she could only