Guo Po was furious. A resplendent radiance shone from his pupils, and when the radiance landed on the sturdy boy, the boy turned stiff as though he had become a puppet. Guo Po gained a burst of strength from an unknown source and pushed all the children around him away. Dragging his lame leg behind him, he charged the sturdy boy.

"You are not allowed to bully her!" roared Guo Po like a furious lion as he threw a punch at the sturdy boy.

The sturdy boy was stronger than Guo Po, but he actually stood still as the punch came. The punch sent him flying, and blood spurted out. After the successful first hit, Guo Po seemed to turn into a mad dog. He...