Lillun. No, not Lilith, this is someone else. The Yozis realized that the Sidereals had locked up Solar Exaltations in the Jade Prison, and that the Deathlords were using the Monstrances of Celestial Portion to create Abyssal Exaltations, so they needed something to run the 50 Solar shards they got through the spin cycle. So they made their own storage device. Out of a little girl, whose body has been horribly twisted and tortured to provide a living cage for the Infernal Exaltations. That's right; the Yozis took a mortal girl, stuck her in Hell, and tortured her so that they could further their plans. Although the Scarlet Empress deserves her own share of the monstrousness here: Lillun was her youngest daughter, and it was the Empress who sold her to the Yozis in the first place.
"In her calmer lucid moments, Lillun seems to appreciate these simple pleasures and the company of the innocent. To date, the feeling has not proven mutual."