The Ten Kings of Hell, following the orders of Ksitigarbha Bodhisattva, sent Black and White Impermanence with the Life and Death Document to Flower-Fruit Mountain to fetch Wukong to the Underworld, but ended up in chaos when Wukong fought furiously. He killed the duo of Black and White Impermanence and struck off many names from the Book of Life and Death. Just as he was about to leave the city, a surge of bloody aura whirled towards him, snatching away thousands of souls. The Ten Kings of Hell were so terrified that their souls scattered, and they used the Traverse Through Earth Golden Light escape technique to flee directly to Jade Cloud Palace to seek Ksitigarbha King.
As the bloody aura swept away thousands of souls, these souls immediately began to wail loudly, and one after another, they were refined into Blood God Children.
Wukong too startled, then saw a figure leap out from within the bloody aura. This person was Indra, from the Asura Clan of the Netherworld Blood Sea.