C17 The Mystery of the Dantian

The sound of an explosion resounded throughout the cave, shaking the sky. A few figures quickly rushed in from outside the cave.

"Yunfei, how is it? Did you succeed?" Elder Meng was the first to ask.

"Mr. Yunfei, are you hurt?" Leng Hanshuang was also a little anxious.

"Yi. . . Ya. . . Yi. . . Ah?" Black Spirit was also expressing his concern