The End of the World, My Hundred-Story Security Building

[Lie down at the end of the world + management and development + system + no cp alone + invincibility + healing] Sang Mo traveled to the end of the world, but obtained the "100-story Security Building" system. Here, she must start in a single room and unlock 100 floors! Under the system, there are two hard rules: 1. No one in the safe building can attack the building owner 2. Zombies of any class will not attack the building owner From the 1st to the 100th floor, Sangmo unlocks various accommodation rooms, restaurants, bathhouses, buffets, superpower recovery warehouses, gyms, KTVs, cinemas, mahjong rooms, clothing stores... You have to choose the items on each floor by yourself, and also place the items in their orientation and location! Sang Mo: "No matter where we live, we must prioritize ourselves." In the process of daily operations, Sang Mo discovered that in addition to lottery draws, the system also had Easter eggs! So what are you waiting for? Upgrade your room and expand your customer base. What should we do if there are more and more people? Sang Mo: "Don't be afraid, our space on each floor can be expanded infinitely." Bored? The system produces mobile phones! How can we miss out on playing games and watching movies in the apocalypse? Occasionally encountering some good-looking zombies, Sang Mo hurriedly stepped forward: "Ha ha ha ha, do you want to come work for me?" Sang Mo took out the zombie coins and waved them in front of them. System: "Master, all the tenants seem to think you are a level five psychic." Sang Mo flipped his hair: "I'm just an invincible building owner." ​ Tenant: Surprise!