Gun Shield Technique from Another World

Gun, a gun that shoots fireballs. Shield, a shield that can resist all attacks. Wang Zhen is a magician who can absorb all magic elements. However, because he suffered a gunshot wound to his head, his magic corridor was damaged. Therefore, Wang Zhen is a mage, but he is only a melee mage. There is no way, Wang Zhen cannot release magic, he can only absorb magic elements! But Wang Zhen has developed a new way of fighting, and he is thriving in the different world!