C683 The Pain in His Heart

"What's wrong?" people asked him with concern in their eyes.

At that moment, Yun Gui felt an unbearable tightness in his chest, as if an invisible hand was gripping his heart, making it hard for him to breathe.

Master Ling Tian came to his side and checked his pulse, but after a long while, he couldn't find the cause.

"Master, I feel terrible