In the Nether System.
After receiving the command from one of the temporary leaders of the System, Warden Lou Wuye and Prisoner Yun Ming escorted Elder Hei to the lowest layer of Nether Hell. The last layer of Nether Hell is an Isolation area without even any hint of sunlight illuminating the place. Just a layer field with darkness and stone caves made from materials that could restrain the Godly powers of whatever Deity or God had been sent in this place. Each criminal that was placed in this layer would never see the light in their whole life. At least and unless someone had the permission of the top authorities of the Nether System approved one to be moved to another cell.
But at the same time, this is also the neutral zone in the Nether System. In this layer, whether you are a prisoner, a warden, or a visitor, all your godly powers would be restrained in this place as if the whole layer is made from material that could seal someone's divinity.
