From StarryHeaven:

Megumi Yoshida (nicknamed: Useless Yoshi Yoshi-dame) entered university prep school after high school but it was difficult to make friends. Useless Yoshida wanted to make friends and because she knew her classmate likes presents, thought that was the best way to make friends. However, she doesn’t have much money, and when asked for some cosmetics, she shoplifts. Afterwards, useless Yoshida joined the shoplifting group and though she felt guilty in the beginning, she soon became accustomed to shoplifting without remorse. However after reflecting on the hurt she was causing to the people who knew about the shoplifting, she stops shoplifting and decides to make everything right again by paying back what she stole. But standing in her way are the members of the shoplifting group, Yumacchi and her friends.