Doomsday Hot Spring Hotel

Cha Mi was resurrected and came to another world. As a traveler from another world, he obtained a hot spring hotel management system. Cha Mi was dumbfounded. She was in the desert and it was very hot outside, so she opened a hot spring hotel. Can this store really be opened? But Cha Mi, who was penniless, could only open a shop. But she didn't know why humans who had already adapted to high temperatures would care about the temperature of hot springs. Is that a hot spring? No that's their water source. And this store always has not only water, but also lots and lots of food, many things that can help them survive in this desperate era. The shop owner raised an iron-eating beast, and everyone knew that the iron-eating beast was very powerful in combat. But the little shopkeeper plays with it in his arms every day. Until one day many iron-eating beasts came to the store, and the shopkeeper asked them if they wanted