Waking up, all of humanity collectively transmigrated to a primitive world. There are no tall buildings, no advanced technology, and even food and resources are extremely scarce. Unnamable monsters lurk in the darkness. In this crisis-ridden world with scarce food, people's hearts sink into endless darkness, and countless people fight and kill each other for a bite of food. Luckily, Tang Zheng awakened with an SSS-class talent, Universal Synthesis! So, when others are starving and shivering, Tang Zheng has already synthesized the essential survival kit! When others finally build a tree house, Tang Zheng is already lying flat in a beautiful two-story building. When others are besieged by monsters and have nowhere to go, Tang Zheng carries his self-synthesized RPG ultimate explosive bullet and pulls the trigger. Looking at the instantly...