一级理论和二级理论的区别

Yin Ying's expression changed drastically as she watched from the side. She had always thought that her cultivation level was similar to that of Lu Yixian. Even if he is not as good as Lu Yixian, the difference is still limited. But after Lu Yixian and Ning Cheng exchanged punches, she realized that compared to Lu Yixian, she, Yin Ying, was still a level below....