The show is about the life of this store clerk (America Ferrera) and the everyday life she encounters at the store along with her coworkers. The show also gives away background information of the main character, possibly making her highly relatable to the viewers as well. It's a great comedy that sheds some light on what it's like to work retail in a sort of fun way.
https://m.youtube.com/watch?v=OwrvKD1UfPw
