Listia watched as the female baddie got kicked in the opposite direction, smashing into the wall. While Listia wouldn't mind kicking her while she was down, it would be difficult to reach her position from where she was now, having to cross the male baddie's sphere of influence along the way. Had it not been directed towards the feet of her ally, that fire of his could cover a large distance and could possibly even hit her where she stood should she become the target of his ire. That being said, it was high time to begin the three second charge time to place a faint blue shroud of energy over her skin to shield against any attacks that came her way, including that twisted fire of his. It wouldn't hold up to attacks indefinitely, but a brief pass of fire would likely not be able to penetrate unless it packed more of a punch than getting hit by a bullet. She believed she could cover the distance between the two in a full on sprint and attack before the shield ran out, should it come to that.

Whatever the case may be, come three seconds and she'd only have 30 seconds of it being active, so she couldn't dawdle for very long. The best case would be to eliminate him in that period of time and then switch to another spirit with fresh energy reserves in order to help combat the remaining foe. At the current moment, the male enemy was heading off to one of the supporting columns. He could use it for cover, but so could she, limiting the amount of time he could get full on attacks against her shields and bettering her chance of survival. As she advanced towards him, the final seconds of her charge time quickly ticking down to completion, she adjusted her run to place the pillar in between the two of them. 

This would obstruct his view of her so he might not be able to tell that her shield would be up momentarily, which could make him unprepared for her enhanced defensive capabilities, him thinking that she was previously defenseless due to her lack of significant clothing. Of course this went both ways, so she had to trust that her shields would still be able to hold true to whatever he might attempt while he was back there.

If he showed himself around the pillar then she'd quickly try to see what he would attempt and make an effort to dodge should it seem more threatening then a bullet or of unknown power. If it was clearly less threatening like his fire attack from before then she'd take him off guard by charging straight through his assault and trying to joust at his face as she got closer. If he was focused on her ally, still, then he'd be in major trouble. 

Because her shield blocked off the cold wind against her skin, she didn't notice the decreased temperature, but would certainly be in for an unpleasant surprise once it ran out, given her outfit.