Burning Hell, as seen on Chapter 1.

Burning Hell is one of the hells, the areas of the Demon World designed for the punishment of sinners. It is made of burning hot lava, and there the sinners are cooked for three thousand years. In charge of Burning Hell is Meyer, a female shinigami with lighting powers. She enjoys dropping the sinners in the lava and catching them in the last moment before they fall, in order to see their scared faces, before dropping them for real and then taking their dark matter.