The Pandemonium was the hide-out of the witches of Satan. Due to the unrivaled strength of their coven, they managed to punch through the planes and established a base no one would ever find… only witches of Satan like them.
Even if they had different handlers, most witches were too low-leveled to actually traverse to the Pandemonium. Nadin Jaeger used to be this kind of witch before he won Carmina, the white ghost, from a calamity-grade witch he killed. Instead of letting Carmina fade away as a familiar with no master, he took in the young woman he—and even her old master—thought was useless.
However, as she was a good-willed soul that was corrupted, she needed goodwill to upgrade her power… just like how the hellhounds needed to consume souls.
Since Nadin was taking good care of her, she began transforming and attaining her deserved calamity grade. The white ghost could turn into anything and tap into electronics—since that was what Nadin asked her to dedicate her skills.
