Doomsday: The Supplies I Get from Sign-In at the Start Will Last Fifty Years

Reborn three days before the apocalypse, Chen Mo, a good-for-nothing, awakened the "Sign-In for All Things" System. He signed in at an abandoned warehouse and received a gigantic safe house stocked with supplies. He signed in at a supermarket on the verge of closing and obtained an energy system powered by future technology... When the apocalypse arrived, a zombie horde swept through the city. He'd planned to quietly survive until the end, but his enemies cornered him outside his door. Chen Mo opened the System shop and looked at the plasma-powered Gatling gun in stock. With a helpless sigh, he said, "If you're so eager to die, I'll be happy to help."