Yoomi is a lovely young lady who lives in Busan with her parents. Her parents constantly restrict her, she is not allowed to go to crowded places alone or hang out with her friends. Until one day, her father told her that she would be entering Bangtan High School in the following year. Since she was in secondary school, Bangtan High School had been her dream high school, but it was too far away from her home. Yoomi was worried that she wouldn't fit in, and she would miss her parents badly. What will Yoomi's life be like when she lives alone?

After the high school ends, Yoomi starts to find new job for herself.She always want to be a cake master. One day, she saw a bakery shop need to hire a female worker for making cakes so she decided to get the job for herself.