Because in recent years, the world has been plagued by natural and man-made disasters, with severe pollution resulting in blood mutations throughout the population. Zombies who bite living humans suffer from the pain caused by this "GMO blood," becoming weaker and weaker. Those who die are dead, those who are lost are lost, their numbers gradually decreasing until now, only it remains.,The Thunder God Bear hugged Guan Heng tightly, "I won't do it anymore, let me go back! I still have to sweep the floor at Baiyun Guan!",Let me know if you'd like me to translate anything else!。