Survival in Another World: I Have a Sign-In System

Overnight, the world traveled across the world, and everyone was transported to another world, where survival became people's primary difficulty. "Hey, the sign-in system is activated", "Get a gift package for newbies", let's see how Lin Tian survives in this world in the future. The grades are divided into: ordinary white, good green, excellent blue, rare purple, perfect pink, legendary orange, epic yellow, mythical colorful. Each grade is divided into upper, middle and lower grades. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.