Yes, Zombies Pay Me Rent!

The apocalypse came with heat, and the survivors of it fought each other over drinking water. Evan Ryce had no combat ability of his own and his family threw him out for it. After that he came into a landlord system. It gave him the one air conditioned luxury building left standing, and staff. His receptionist, Maya, is an SSS grade zombie who throws electricity and dances girl group routines. His security guard is a zombie saving up crystal cores so he can marry the zombie girl next door. Several more SSS grade zombies run the moving business and the delivery service, which holds a hundred percent satisfaction rating. Evan sits inside with the air conditioning on, eating watermelon, and collects rent. A former Federation general turned up at the gate with thirty thousand survivors asking for somewhere to live. The relatives who had thrown him out came back too, claiming family. Evan told them all the same thing. Rooms were available, and the rent was crystal cores. For the ones who expected to stay for free, he pointed out that his zombie staff had been restless lately.