Island Floating Survival: Why Do You Have Everything?

One night, billions of people in various parallel worlds collectively traveled to an unknown world. In the endless sea, everyone has an island floating on the sea. In addition to the marine life brought by the daily tide, the ocean currents will bring the small island to a large island every once in a while. Afterwards, you can obtain supplies on the island, but you must also guard against sneak attacks by other people. Zhang Xin accidentally got a system bug and could randomly draw something every day, ranging from toothpicks to aerospace aircraft carriers. Just when everyone was thinking about starving for nine meals in three days, Zhang Xin had already begun to think about how to prevent high blood pressure and diabetes.