rerequisite is that none of the nine soul rings can exceed a thousand years old. 。But among the other four, only Tang Wulin's mental power has reached the Lingtong realm. The other three are still hov...d of soul power. 。The teacher proctoring the exam beside them was dumbfounded. He had been proctoring exams for so long, and had never seen anything like this before. 。Tang Wulin finally came to Gu Y...