Sulli. Manager of a retail store called Cotton Factory. She had been working in that company for 5 years now, and she started off as a part timer in Cotton Factory. She slowly climbed up and became a manger. 

Every quarter of the year, there will be a recruitment drive held countrywide. She had seen many different kind of staffs and she slowly learnt how to take control of every kind of staff that was posted to her store. Many of these staffs would eventually get frustrated of Sulli's working attitude and eventually leave the company. 

Choi Minho, a new part timer who just got posted to Sulli's store. Things were about to change when he became the first staff to surpress Sulli's expectations although she would try to make him suffer every single shift he's in. 

Sulli would be so surprised to know who Minho really is one fine day.