Ye Xiajie made a lot of plans for what may happen while he was out in the Nether System.
He utilized his own property and forbade uninvited guests from entering. Only those who possess his jade token, the Crest of Abyss, or are far more powerful than he is are permitted entry inside his dominion.
He developed a cautious attitude toward anything outside of his control after killing his wife as the Second Trial's final stage. The Abyss entry was restricted in some way even for Shen Siwang. After all, unless you have the ruler's consent, the Abyss is not a pleasant place to remain. Even a Sovereign Ruler God like Shen Siwang would consider the Void not a good place to stay into.
