Shen Mingzhe, whose age is unknown, was one of the seven great demon kings in ancient times. A hundred years ago, several major families united to suppress him under the boundless purgatory because he was too rampant. He also locked up his magic power with seven chains, and used black iron chains to extract Shen Mingzhe's magic power for hundreds of years to fill the energy consumption required by the magic trap.
The devil is as tall as the Taoist. Shen Mingzhe uses his magic power to carve out a tiny gap and concludes a soul contract to fulfill people's wishes and sneak away.