And this Thousand-hand Ghost King ultimately turned to dust, which involved the cultivators of that time.
Those cultivators knew they couldn't defeat the Thousand-hand Ghost King, so they laid out plans and forced the supreme ghost king to unleash Purple-tier powers.
Once the Purple-tier power appeared, the Thousand-hand Ghost King met the same fate in the five tribulations as the Faceless Ghost King.
The subsequent three supreme ghost kings perished similarly, either outmaneuvered by cultivators or had to bring forth their Purple-tier powers by accident and were then erased by the five tribulations.
However, since then, through the joint efforts of the ghost kings, the mainstream practice among the Yin Spirit Power cultivators changed once again.
They reverted to the most ancient ways, worshiping the bizarre and primarily cultivating the mysterious path.