Dancing the Waltz Alone(2017)

Original title: 혼자 추는 왈츠

Min-Sun (Mun Ka-Young) and Gun-Hee (Yeo Hoi-Hyeon) first met at a waltz class and have dated for the past 8 years. Min-Sun is now an intern at a large company and Gun-Hee works at a mid-size company. Somehow, they become competitors for a job.