Nothing to prepare. It's an entry-level position, and they seem willing to hire anyone on the spot due to their high turnover rate.
Be prepared, take some time to learn about the company before going into the interview. Be yourself and remember that the interview is also your chance to see if the company is a good fit for you too. I think you’ll find that it is
Move on to a better place , they will ask for references .
Move on to other opportunities.