Sign In: I Build a City in the Desert

After being reborn in the desert, he obtained the desert sign-in system. He used the spiritual potion obtained from sign-in to plant grasslands, wheat, and fruit trees in the desert. He uses sign-in technology to create artifact buildings, always-on lights, nuclear-powered trucks, and excavators. He searched for the buried Crystal Palace and the ancient golden city in the desert. He single-handedly created the peak era of the desert using the sign-in system.