Worst girl just got the highest states of their OP. She was starting to become a little bit more humble. After nearly 10 chapters of shit getting through her skull, she finally began to think about herself and to change. And that to a very low amount, that is. And now that is over. She's OP and she'll return to be that arrogant bitch. My guess is, she will lose her powers again, but not before ridicule that other isekai guy to a point of him nearly losing everything. Then she'll helpless again and we should have pity on her again. I know that isekai guy will help her again. I'm sure, that guy was at one point into her and confessed. She in turn ridiculed him and keep picking on him ever since until he died. But he is still in love with her, so he won't let her go.
At least her entrance when returning looked nice.