Especially when this man was still his son, having lost an arm, he became even more unforgiving. He had to find a few people to vent his anger upon, or else he would go mad.,"Dad..." Guo Zisheng let out a muffled groan, "I... it hurts so much...",Guo Zisheng's panting sounded in Guo Tiansheng's ears, as agonizing as being pricked by a needle!。