Oh Geumhui is in a way, hardworking, but seems a workaholic at times. She leads a normal life, working at her long-time close friend Kang Taeri's company. When the new employee mistakes her and Taeri as lesbians and quits, the competent Yu Bora appears. With strange events happening, they find out that Nosong Group was behind this… How will the three solve their problems?