妈妈和儿子的dna不同吗

These thoughts just quickly passed through Ning Cheng's mind, and soon Ning Cheng came back to his senses. He did not give up the Qiankun Cauldron to this pale-faced guy. If he did so, it would show that he and Lan Shu were afraid of him, and maybe he would go even harder to find Lan Shu....