Mother Of Fire.
It's the mature looking lady whose beauty was voluptuous with flames all over. Her hair was like fire waterfall descending behind. Overall, she was all naked, but the flames were covering up the most important parts becoming rather too exposing kind of dress. The fire jewels were deeply hovering on Xue Ren's face seeming as if really pleading.
Whether she couldn't really use her power or not, Mother Of Fire was just looking at Xue Ren with sincere expression.
It was as if she also could feel Xue Ren's emotions as well!
Nevertheless, Xue Ren had different impression of Mother Of Fire. The lightning one was prideful and arrogant, so he imagined the fire one to be quite loud and totally opposite to the one his eyes were looking at.