Jung Sooyeon's life had always been terrible. The place she lives is somewhere where you don't wanna even go to. Let alone look at it. She lives in a run-down shack with her mother and her little sister, Soojung in a rural area. Well, she used to have an elder brother who was taken away by some strangers when he was only 6. Sooyeon could no longer remember how her brother looks like. I mean, just think about it. She was only 5 years old when his brother got kidnapped and while growing up, she had only seen several baby pictures of him. Unfortunately, Sooyeon's father died in an car accident 7 years ago. And of course, there was no one except Sooyeon's umma to work and take care of the two girls.

Being the older one, Sooyeon is more independent and starts working part-time at a cafe at a young age. Once she graduated at the age of 18, she stopped schooling and became  a full-time worker at the cafe. And of course, Soojungwas forced to continue studying and not have a job. Sooyeon just wished that her sister could have a better education than she had, instead of spending time on jobs. 

They lead a painful and rough life everyday. That is, untill Sooyeon's friend, Yuri introduced Sooyeon to a new job...

The Worst Job Ever?