C74 The Utilization of Qi and Fire

When Zi Tianhao returned to the Martial Arts Institute, he saw Xia Chu in the yard carrying a big stone that he had gotten from somewhere. He was standing up with one hand, and his whole body was covered in sweat.

"Junior Brother Zi, you're back? Senior Sister Han, I just asked you where you went..." When Xia Chu saw Zi Tianhao, he immediately put down the big rock and said