s based on the level of operation." < br > Yu Jinghai stepped forward at this time and explained, "the rules are very simple. As we all know, there are five subjects in the metaphysical world. Mountai...Mrs. Xiao sitting in the middle of the teacher's chair, standing next to Xiao Changqian, while the Xiao Hailong brothers and sisters stood on the other side. < br > in addition to them, there are seve...