19-year-old Sujeong had a busy life filling the gap of her late mother. She met her first love 'Black Dragon.' However, her romantic ended up becoming the most embarrassing moment in her life.

With Juyeon in the lead, Yongsung Department Store is having a large-scale renewal project. Juyeon and Sujeong become closer as they work together. Then Juyeon becomes highly disappointed in Sujeong.