I Made a Lot of Money by Opening a Hotel in the Zombie Apocalypse

Three years after the end of the world, I bound to the hotel system and started a prosperous life. I opened the store and made the rules. My principles are principles. If there is no crystal core, there will be no BB~ In my hotel, there is no limit on the purchase of supplies, and you can enjoy cutting-edge technology as you like. As long as you can afford the crystal core, the quality of life will continue to improve~