Seocho-dong is home to many of Seoul's top courts and law firms, including the workplaces of jaded veteran attorney Ahn Ju Hyeong (Lee Jong Suk) and fellow lawyers Cho Chang Won (Kang You Seok), Bae Mun Jeong (Ryu Hye Young), and Ha Sang Gi (Im Seong Jae), who all work in the same building. While they don't all work in the same office, they come together to share their highs and lows over lunch and other outings. As the attorneys navigate difficult cases, a sudden firm merger, and unexpected personal issues, they find ways to rely on each other. However, their tight-knit group gets a shakeup with the arrival of optimistic rookie attorney Kang Hui Ji (Mun Ka Young) who shares a past connection with Ju Hyeong – but he doesn't seem to remember her. Will this change things for the better, or for the worse?
