Tian Hao and the World Will were both decisive individuals. Once they reached an agreement, they acted immediately, manipulating space and guiding the Netherworld Blood Sea directly to the location of the Underworld.
There had originally been no energy plane like the God Realm in the universe. It was a product of Fate's influence, while the Underworld itself was also an energy plane—indeed, the very first energy plane established by Fate.
Fate used the Underworld to draw in and devour the souls of living beings throughout the universe, transforming them into source power to strengthen itself. That was precisely how it, as an outsider, had seized more than half of the Source Laws.
The World Will had always wanted to destroy the Underworld, but Fate had suppressed it, leaving it unable to spare the effort.
It had nearly fallen into despair, only for Tian Hao, an unexpected variable, to appear. Now, many things could be done.
Tian Hao guided the Netherworld Blood Sea into the Underworld. Too lazy to waste words on the things hiding inside, he directly imbued the God-Slaying Four Swords with Sword Dao Laws and deployed a God-Slaying Sword Formation that covered the entire Underworld.
It was further enhanced by the Divine-Demon Taiji Bagua Diagram, which enveloped the whole Underworld and swiftly ground it apart and erased it. Its true body did not even manifest.
The World Will was not idle either. It mobilized spatial laws to reinforce the sword formation, sealing off the Underworld even more tightly to prevent those within from escaping, while also blocking Fate from intervening to rescue the Underworld gods.
The Underworld gods, who were in seclusion adapting to the power Fate had bestowed upon them, were dumbfounded. They tried to resist, but before Sword Dao power at the level of Source