After the initial crash of the building collapsing behind her, Erika was expecting more crashes to follow, but they were staved off by the arrival of another vigilante. Eyes widening at Grim’s display, she couldn’t help but whisper, “Cool!” under her breath before diverting her attention elsewhere. With all the civilians evacuated from the building there wasn’t much more that her power would be helpful for regarding the fire, so she decided to make herself useful assisting the authorities in keeping the civilians at bay so that when the building does inevitably collapse they won’t accidentally be harmed by the resulting debris. She did make sure to keep her fangirling in her own mind after spotting Professor Devil talking to another woman out of the corner of her eye as well as focussing on the job at hand though.