Infrastructure for the End of the World: Starting from a Convenience Store

In the third year of the apocalypse, a convenience store with electricity suddenly appeared in a deserted city, and there was a round-faced girl sitting inside with a German Shepherd lying at her feet. When Cheng Sui was selected, she was watching Chengzi lie on her bloody body and take her last breath. After time travel, she only wanted to work hard on infrastructure with her pet dog, and then make money while lying down. However, this one task after another... Forget it, infrastructure people are the best at people!