7-kakan no Cinderella

Mai is a gorgeous girl who works as a cosmetics salesperson. I'm an office lady in sweats who has a low monthly salary, doesn't care about my appearance, only sleeps on my days off, has no plans to go on a date with a man, and stares at my bankbook. People who don't have money are living in a shared room. One day, I received a direct mail informing me that I had won. Mai applied without permission, and it seems that she won a certain project... The content of the project is that you can go on a date with a nice businessman for just 7 days!!!?